Rikard Unelius
ProfessorBiography, degrees, and positions:
1. 1977-1983 Undergraduate studies in chemistry and biology, University of Sussex, England. Biology 2 years. Interrupted by mandatory military service). 1983. Graduate degree (main subject chemistry) from the University of Stockholm (Högskoleexamen).
2. 1983-1989 PhD student in Prof. Torbjörn Norin's pheromone group at the Royal Institute of Technology, Stockholm. Dissertation (PhD, Organic Chemistry) from the Royal Institute of Technology, Stockholm. April 27, 1989
3. 1990-91 Post-doctoral stay with Prof. G.D. Prestwich at the State University of New York at Stony Brook (Pheromone biochemistry). 1990-91Supervisor / researcher in Prof. Norin's bioorganic synthesis group at the Royal Institute of Technology, Stockholm. 1992-99 Independent research position in the field of “Stereospecific Synthesis of Biologically Active Compounds for Insect Pests” at the Royal Institute of Technology founded by SJFR (forskarassistent Research Assistant). 1995 Founded the Ecological Chemistry Group at the Royal Institute of Technology, together with Dr A. K. Borg-Karlson.
4. 1996 Appointed Docent (Associate Professor) at the Royal Institute of Technology, Stockholm.
5. 2000-2010 Permanent position as University Lecturer (Universitetslektor i organisk kemi) at the School of Natural Sciences, Linneus University, Kalmar/Växjö. (in RL >50%-80% research)
6. Appointed as Professor of Organic Chemistry at the School of Natural Sciences, Linneus University, Kalmar/Växjö. (50% research)
2008-2010 Employed as Scientist at The Horticulture and Food Research Institute of New Zealand Limited, New Zealand, fixed-term contract for 10 months
2008-2010 Honorary Associate with HortResearch (now merged with another institute to become The New Zealand Institute for Plant & Food Research Limited, and part-time consultant for this institute as Senior Scientist
2011-2014 Honorary Associate with The New Zealand Institute for Plant & Food Research Limited, and part-time consultant for this institute as Senior Scientist ( 3-4 months per year).
2022-2024 Catalyst Leader in Agresearch Ltd Lincoln, NZ, (2 months /year)
Publications: 105 peer-reviewed publications and patents
Teaching
Rikard Unelius teaching experience includes general chemistry, organic chemistry, physical chemistry and drug chemistry at KTH, Kalmar University and Linnaeus University; everything from lab supervisor in general chemistry to course coordinators at the 10-point course at doctoral level.
Research
My PhD-work between 1983-1989 was about the synthesis of pheromones. My post-doctoral work together with Prof. G.D. Prestwich at the State University of New York at Stony Brook, Long Island, in 1990 was about pheromone biochemistry. I studied pheromone binding proteins and how the chemical message moved from the surface of the antennae to the dendrite. When I returned from my post-doc work, I engaged in the Biocatalysis Group run by Professors K. Hult and T. Norin and worked as a senior scientist. There I used lipases to obtain stereochemically pure chiral pheromone components. Later on, when I received my own grants for pheromone research, I gradually pulled out of the Biocatalysis Group. In 1994 I started my own group but soon merged it with the group of the analytical organic chemist, A-K Borg-Karlson. From 1995 until 2000, we lead of a research group working in the field of Ecological Chemistry at Organic Chemistry, KTH. At the turn of the millennium I moved from KTH to the University of Kalmar. At Kalmar I have continued my research on semiochemicals while also focusing on the development of new ways to prepare stereochemically pure compounds. Semiochemicals are compounds that transmit messages between organisms. These signals have found an application in the monitoring and control of insect pest populations (to replace or complement conventional pesticides) and this field is growing rapidly. The goal of my research in the field of ecological chemistry has been to develop efficient syntheses for behaviourally active semiochemicals, useful for controlling populations of economically or medically important pest insects. Project examples are: prevention of bark beetles from killing weakened spruce trees; identification pheromones of the vectors that spread Chagas disease; an overall goal to develop of a monitoring trapping device to prevent human fatalities in Brazil and Latin America.
In 2007 I was “head-hunted” and since September 2007 I have been partly contracted to a Crown Research Institute in New Zealand, Plant and Food Research Ltd and I am now an Honorary Associate with them. I have acted as the senior chemist and improved the chemistry competence of the group while also working with the identification of semiochemicals from established or invasive insect pests. As an example of a project executed in New Zealand I can mention the identification of a terpenoid pheromone of a mealy bug.
In some projects I have led the investigations (e.g. in pheromone identifications and in the search for the best antifeedants for pine weevils) but the research is almost always collaboration projects where both the chemist and the biologist take intellectual responsibility. Over the years we have identified and synthesized a considerable number of pheromones and other molecules. Whenever needed, we use top of the art organic chemistry methods to solve the problems we encounter in applied chemical ecology. Sometimes this work leads to findings that are of interest for more mid-stream organic chemists and we publish papers about it in general organic chemistry journals.
My projects have mainly been sponsored by FORMAS, the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (earlier SJFR = Swedish Research Council for Agriculture and Forestry), the University of Kalmar and, more recently, research foundations in New Zealand. Many of the results are now applied in integrated insect pest management. I have published 93 peer-reviewed papers and patents.
In the last 15 year I have executed my research in research institutes in New Zealand (PFR and Agresearch Ltd). In all spent 50 months over there.
My research groups
My ongoing research projects
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Project: Control of forest insect pests; Antifeedants for the pine weevil; Hylobius abietis We have identified organic anti-gnawing compounds that can protect pine and spruce seedlings from being…
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Project: Environmentally sustainable control of bark beetles by use of odour signals from their fungal symbionts This project is about three very different organisms that are bound together in close…
My completed research projects
Publications
Article in journal (Refereed)
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Unelius, C.R., Ganji, S., Krokene, P. (2023). Linoleic Acid Promotes Emission of Bark Beetle Semiochemicals by Fungal Symbionts. Journal of Chemical Ecology. 49. 59-66.
Status: Published -
Lindmark, M., Ganji, S., Wallin, E., Schlyter, F., Unelius, C.R. (2023). Semiochemicals produced by fungal bark beetle symbiont Endoconidiophora rufipennis and the discovery of an anti-attractant for Ips typographus. PLOS ONE. 18 (4).
Status: Published -
Moliterno, A.A.C., Jakus, R., Modlinger, R., Unelius, C.R., Schlyter, F., et al. (2023). Field effects of oxygenated monoterpenes and estragole combined with pheromone on attraction of Ips typographus and its natural enemies. Frontiers in Forests and Global Change. 6.
Status: Published -
Sullivan, N.J., Bell, V.A., Butler, R.C., Wallis, R., Ramesh, R., et al. (2023). Developing a mealybug pheromone monitoring tool to enhance IPM practices in New Zealand vineyards. Journal of Pest Science. 96. 29-39.
Status: Published -
Jirosova, A., Kalinova, B., Modlinger, R., Jakus, R., Unelius, C.R., et al. (2022). Anti-attractant activity of (+)-trans-4-thujanol for Eurasian spruce bark beetle Ips typographus : Novel potency for females. Pest Management Science. 78 (5). 1992-1999.
Status: Published -
Bellenberg, S., Salas, B., Ganji, S., Jorquera-Roman, C., Valenzuela, M.L., et al. (2021). Diffusible signal factor signaling controls bioleaching activity and niche protection in the acidophilic, mineral-oxidizing leptospirilli. Scientific Reports. 11 (1).
Status: Published -
Ninkovic, V., Glinwood, R., Unlu, A.G., Ganji, S., Unelius, C.R. (2021). Effects of Methyl Salicylate on Host Plant Acceptance and Feeding by the Aphid Rhopalosiphum padi. Frontiers in Plant Science. 12.
Status: Published -
Hou, X., Yuvaraj, J.K., Roberts, R.E., Zhang, D., Unelius, C.R., et al. (2021). Functional Evolution of a Bark Beetle Odorant Receptor Clade Detecting Monoterpenoids of Different Ecological Origins. Molecular biology and evolution. 38 (11). 4934-4947.
Status: Published -
Hilker, S., Posevins, D., Unelius, C.R., Bäckvall, J. (2021). Chemoenzymatic Dynamic Kinetic Asymmetric Transformations of β-Hydroxyketones. Chemistry - A European Journal. 27 (63). 15623-15627.
Status: Published -
El-Sayed, A.M., Ganji, S., Gross, J., Giesen, N., Rid, M., et al. (2021). Climate change risk to pheromone application in pest management. The Science of Nature : Naturwissenschaften. 108 (6).
Status: Published -
El-Sayed, A.M., Ganji, S., Unelius, C.R., Gemeno, C., Ammagarahalli, B., et al. (2021). Feeding Volatiles of Larval Sparganothis pilleriana (Lepidoptera:Tortricidae) Attract Heterospecific Adults o the European Grapevine Moth. Environmental Entomology. 50 (6). 1286-1293.
Status: Published -
Ganji, S., Svensson, F.G., Unelius, C.R. (2020). Asymmetric Synthesis of Oxygenated Monoterpenoids of Importance for Bark Beetle Ecology. Journal of Natural Products. 83 (11). 3332-3337.
Status: Published -
Gonzalez, F., Borrero-Echeverry, F., Josvai, J.K., Strandh, M., Unelius, C.R., et al. (2020). Odorant receptor phylogeny confirms conserved channels for sex pheromone and host plant signals in tortricid moths. Ecology and Evolution. 10 (14). 7334-7348.
Status: Published -
Park, K.C., Mcneill, M.R., Suckling, D.M., Unelius, C.R. (2020). Olfactory Receptor Neurons for Plant Volatiles and Pheromone Compounds in the Lucerne Weevil, Sitona discoideus. Journal of Chemical Ecology. 46. 250-263.
Status: Published -
Zhao, T., Ganji, S., Bohman, B., Weinstein, P., Krokene, P., et al. (2019). Convergent evolution of semiochemicals across Kingdoms : bark beetles and their fungal symbionts. The ISME Journal. 13 (6). 1535-1545.
Status: Published -
El-Sayed, A.M., Venkatesham, U., Unelius, C.R., Sporle, A., Perez, J., et al. (2019). Chemical Composition of the Rectal Gland and Volatiles Released by Female Queensland Fruit Fly, Bactrocera tryoni (Diptera:Tephritidae). Environmental Entomology. 48 (4). 807-814.
Status: Published -
Schiebe, C., Unelius, C.R., Ganji, S., Binyameen, M., Birgersson, G., et al. (2019). Styrene, (+)-trans-(1R,4S,5S)-4-Thujanol and Oxygenated Monoterpenes Related to Host Stress Elicit Strong Electrophysiological Responses in the Bark Beetle Ips typographus. Journal of Chemical Ecology. 45 (5-6). 474-489.
Status: Published -
Masciocchi, M., Unelius, C.R., Buteler, M. (2019). Foraging niche separation of social wasps in an invaded area : Implications for their management. Journal of applied entomology. 143 (10). 1115-1121.
Status: Published -
Bohman, B., Weinstein, A.M., Unelius, C.R., Lorenzo, M.G. (2018). Attraction of Rhodnius prolixus males to a synthetic female-pheromone blend. Parasites & Vectors. 11.
Status: Published -
Unelius, C.R., Bohman, B., Nordlander, G. (2018). Comparison of Phenylacetates with Benzoates and Phenylpropanoates as Antifeedants for the Pine Weevil, Hylobius abietis. Journal of Agricultural and Food Chemistry. 66 (44). 11797-11805.
Status: Published -
El-Sayed, A.M., Unelius, C.R., Suckling, D.M. (2018). Honey Norisoprenoids Attract Bumble Bee, Bombus terrestris, in New Zealand Mountain Beech Forests. Journal of Agricultural and Food Chemistry. 66 (50). 13065-13072.
Status: Published -
Franco, T.A., Xu, P., Brito, N.F., Oliveira, D.S., Wen, X., et al. (2018). Reverse chemical ecology-based approach leading to the accidental discovery of repellents for Rhodnius prolixus, a vector of Chagas diseases refractory to DEET. Insect Biochemistry and Molecular Biology. 103. 46-52.
Status: Published -
Harper, A.R., Unelius, C.R., Townsend, R.J., Suckling, D.M. (2017). Dose reduction and alternatives to the phenol pheromone in monitoring and management of the grass grub Costelytra zealandica. Pest Management Science. 73 (11). 2252-2258.
Status: Published -
Bergström, M., Ganji, S., Naidu Veluru, R., Unelius, C.R. (2017). N-Iodosuccinimide (NIS) in Direct Aromatic Iodination. European Journal of Organic Chemistry. (22). 3234-3239.
Status: Published -
Bohman, B., Flematti, G.R., Unelius, C.R. (2017). Practical one-pot stereospecific preparation of vicinal and 1,3-diols. Tetrahedron Letters. 58 (1). 75-77.
Status: Published -
Marshall, D.G., Jackson, T.A., Unelius, C.R., Wee, S.L., Young, S.D., et al. (2016). Morganella morganii bacteria produces phenol as the sex pheromone of the New Zealand grass grub from tyrosine in the colleterial gland. The Science of Nature : Naturwissenschaften. 103 (7-8).
Status: Published -
Unelius, C.R., Suckling, D.M., Brown, R.L., Jósvai, J.K., El-Sayed, A.M. (2016). Combining odours isolated from phylogenetically diverse sources yields a better lure for yellow jackets. Pest Management Science. 72 (4). 760-769.
Status: Published -
Brown, R.L., El-Sayed, A.M., Unelius, C.R., Beggs, J.R., Suckling, D.M. (2015). Invasive Vespula Wasps Utilize Kairomones to Exploit Honeydew Produced by Sooty Scale Insects, Ultracoelostoma.. Journal of Chemical Ecology. 41 (11). 1018-1027.
Status: Published -
Unelius, C.R., El-Sayed, A.M., Twidle, A.M., Stringer, L.D., Manning, L.M., et al. (2014). Volatiles from green-lipped mussel as a lead to vespid wasp attractants. Journal of applied entomology. 138 (1-2). 87-95.
Status: Published -
Bengtsson, M., Boutitie, A., Jósvai, J., Toth, M., Andreadis, S., et al. (2014). Pheromone races of Cydia splendana (Lepidoptera, Tortricidae) overlap in host plant association and geographic distribution. Frontiers in Ecology and Evolution. 2. 1-6.
Status: Published -
Unelius, C.R., Schiebe, C., Bohman, B., Andersson, M.N., Schlyter, F. (2014). Non-Host Volatile Blend Optimization for Forest Protection against the European Spruce Bark Beetle, Ips typographus. PLOS ONE. 9 (1).
Status: Published -
Brown, R.L., El-Sayed, A.M., Unelius, C.R., Suckling, D.M. (2014). Attraction of the invasive social wasp, Vespula vulgaris, by volatiles from fermented brown sugar. Entomologia Experimentalis et Applicata. 151 (2). 182-190.
Status: Published -
Kleiber, J.R., Unelius, C.R., Lee, J., Maxwell Suckling, D., Qian, M., et al. (2014). Attractiveness of Fermentation and Related Products to Spotted Wing Drosophila (Diptera: Drosophilidae). Environmental Entomology. 43 (2). 439-447.
Status: Published -
Park, K.C., Mcneill, M., Unelius, C.R., Oh, H., Suckling, D.M. (2013). Characterization of olfactory receptor neurons for pheromone candidate and plant volatile compounds in the clover root weevil, Sitona lepidus. Journal of insect physiology. 59 (12). 1222-1234.
Status: Published -
Unelius, C.R., Park, K.-., Mcneill, M., Wee, S.L., Bohman, B., et al. (2013). Identification and electrophysiological studies of (4S,5S)-5-hydroxy-4-methyl-3-heptanone and 4-methyl-3,5-heptanedione in male lucerne weevils. The Science of Nature : Naturwissenschaften. 100 (2). 135-143.
Status: Published -
Unelius, C.R., El-Sayed, A., Twidle, A., Bunn, B., Zaviezo, T., et al. (2011). The Absolute Configuration of the Sex Pheromone of the Citrophilous Mealybug, Pseudococcus calceolariae. Journal of Chemical Ecology. 37 (2). 166-172.
Status: Published -
Bohman, B., Troger, A., Franke, S., Lorenzo, M.G., Francke, W., et al. (2011). Structure Elucidation and Synthesis of Dioxolanes Emitted by Two Triatoma Species (Hemiptera Reduviidae). Journal of natural products (Print). 74 (4). 690-694.
Status: Published -
Schiebe, C., Blaženec, M., Jakuš, R., Unelius, C.R., Schlyter, F. (2011). Semiochemical diversity diverts bark beetle attacks from Norway spruce edges. Journal of applied entomology. 135 (10). 726-737.
Status: Published -
Witzgall, P., Trematerra, P., Liblikas, I., Bengtsson, M., Unelius, C.R. (2010). Pheromone communication channels in tortricid moths: lower specificity of alcohol vs. acetate geometric isomer blends. Bulletin of entomological research. 100 (2). 225-230.
Status: Published -
Anderbrant, O., Matteson, D.S., Unelius, C.R., Pharazyn, P.S., Santangelo, E.M., et al. (2010). Pheromone of the elm bark beetle Scolytus laevis (Coleoptera: Scolytidae): stereoisomers of 4-methyl-3-heptanol reduce interspecific competition. Chemoecology. 20 (3). 179-187.
Status: Published -
El-Sayed, A., Unelius, C.R., Twidle, A., Mitchell, V., Manning, L., et al. (2010). Chrysanthemyl 2-acetoxy-3-methylbutanoate : the sex pheromone of the citrophilous mealybug Pseudococcus calceolariae. Tetrahedron Letters. 51 (7). 1075-1078.
Status: Published -
Legrand, S., Heikkinen, H., Nicholls, I.A., Root, A., Svenson, J., et al. (2010). Preparation, characterization and application of a stationary chromatographic phase from a new (+)-tartaric acid derivative. Tetrahedron Letters. 51 (17). 2258-2261.
Status: Published -
Unelius, C.R., Bohman, B., Lorenzo, M., Tröger, A., Franke, S., et al. (2010). (4S,5S)-2,2,4-Triethyl-5-methyl-1,3-dioxolane : A New Volatile Released by a Triatomine Bug. Organic Letters. 12 (24). 5601-5603.
Status: Published -
Bohman, B., Unelius, C.R. (2009). Synthesis of all four stereoisomers of 5-hydroxy-4-methyl-3-heptanone using plants and oyster mushrooms. Tetrahedron. 65 (42). 8697-8701.
Status: Published -
El-Sayed, A., Manning, L., Unelius, C.R., Park, K., Stringer, L., et al. (2009). Attraction and Antennal Response of the Common Wasp, Vespula vulgaris (L.), to Selected Synthetic Chemicals in New Zealand Beech Forests. Pest Management Science. 65 (9). 975-981.
Status: Published -
Bohman, B., Cavonius, L., Unelius, C.R. (2009). Vegetables as biocatalysts in stereoselective hydrolysis of labile organic compounds. Green Chemistry. 11 (11). 1900-1905.
Status: Published -
Vitta, A., Bohman, B., Unelius, C.R., Lorenzo, M. (2009). Behavioral and Electrophysiological Responses of Triatoma brasiliensis Males to Volatiles Produced in the Metasternal Glands of Female. Journal of Chemical Ecology. 35 (10). 1212-1221.
Status: Published -
Santangelo, E.M., Liblikas, I., Mudalige, A., Törnroos, K.W., Norrby, P., et al. (2008). Asymmetric Syntheses of Iridoid Derivatives Using Resolved 2-Phenylindoline as Chiral Auxiliary. European Journal of Organic Chemistry. 35. 5915-5921.
Status: Published -
Unelius, C.R., Townsend, R.J., Mundy, D.C., Manning, L.M., Jackson, T.A., et al. (2008). Comparisons of traps and lures for monitoring grass grub Costelytra zealandica. New Zealand Plant Protection. 61. 215-221.
Status: Published -
Pontes, G.B., Bohman, B., Unelius, C.R., Lorenzo, M.G. (2008). Metasternal gland volatiles and sexual communication in the triatomine bug, Rhodnius prolixus.. Journal of Chemical Ecology. 34 (4). 450-457.
Status: Published -
Pettersson, M., Unelius, R., Valterova, I., Borg-Karlson, A. (2008). Semiochemicals related to the aphid Cinara pilicornis and its host, Picea abies: A method to assign nepetalactone diastereomers. Journal of Chromatography A. 1180 (1-2). 165-170.
Status: Published -
Bohman, B., Nordlander, G., Nordenhem, H., Sunnerheim, K., Borg-Karlson, A., et al. (2008). Structure - activity relationships of phenyl propanoids as antifeedants for the pine weevil Hylobius abieist. Journal of Chemical Ecology. 34 (3). 339-352.
Status: Published -
Gibb, A., Suckling, D., El-Sayed, A., Bohman, B., Unelius, R., et al. (2007). (11Z,13E)-Hexadecadien-1-yl Acetate: Sex Pheromone of the Grass Webworm Herpetogramma licarsisalis—Identification, Synthesis, and Field Bioassays. Journal of Chemical Ecology. 33 (4). 839-47.
Status: Published -
Sunnerheim, K., Nordqvist, A., Nordlander, G., Borg-Karlson, A., Unelius, R., et al. (2007). Quantitative Structure -Activity Relationships of Pine Weevil Antifeedants, a Multivariate Approach. Journal of Agricultural and Food Chemistry. 55.
Status: Published -
Borg-Karlson, A.K., Nordlander, R., Mudalige, A., Nordenhem, H., Unelius, R. (2006). Antifeedants in the feces of the pine weevil Hylobius abietis: Identification and biological activity. Journal of Chemical Ecology. 32 (5). 943-957.
Status: Published -
Manrique, G., Vitta, A., Ferreira, R., Zani, C., Unelius, R., et al. (2006). Chemical Communication in Chagas Disease Vectors. Source, Identity and Potential Function of Volatiles Released by the Metasternal and Brindleys Glands of Triatoma infestans Adults. Journal of Chemical Ecology. 32 (9). 2035-2052.
Status: Published -
Unelius, R., Nordlander, G., Nordenhem, H., Hellqvist, C., Legrand, S., et al. (2006). Structure-activity relationships of benzoic acid derivatives as antifeedants for the pine weevil, Hylobius abietis. Journal of Chemical Ecology. 32 (10). 2191-2203.
Status: Published -
El-Sayed, A.M., Wainman, L.I., Santangelo, E.M., Unelius, R., Trimble, R.M. (2005). Sex pheromone of a North American population of the spotted tentiform leafminer, Phyllonorycter blancardella. Entomologia Experimentalis et Applicata. 116 (2). 143-148.
Status: Published -
Liblikas, I., Santangelo, E.M., Sandell, J., Baeckström, P., Svensson, M., et al. (2005). Simplified isolation procedure and interconversion of the diastereomers of nepetalactone and nepetalactol. Journal of Natural Products. 68 (6). 886-890.
Status: Published -
Legrand, S., Luukinen, H., Isaksson, R., Kilpelainen, I., Lindström, M., et al. (2005). Synthesis, NMR conformational studies and host-guest behaviour of new (+)-tartaric acid derivatives. Tetrahedron: Asymmetry. 16 (3). 635-640.
Status: Published -
Legrand, S., Nordlander, G., Nordenhem, H., Borg-Karlson, A.K., Unelius, C.R. (2004). Hydroxy-methoxybenzoic methyl esters : Synthesis and antifeedant activity on the pine weevil, Hylobius abietis. Zeitschrift für Naturforschung. B, A journal of chemical sciences. 59 (7). 829-835.
Status: Published -
Legrand, S., Botton, M., Coracini, M., Witzgall, P., Unelius, C.R. (2004). Synthesis and field tests of sex pheromone components of the leafroller Argyrotaenia sphaleropa. Zeitschrift für Naturforschung C - A Journal of Biosciences. 59 (9-10). 708-712.
Status: Published -
El-Sayed, A.M., Wainman, L.I., Santangelo, E.M., Unelius, C.R., Trimble, R.M. (2004). Relative attractiveness of (10E)-dodecen-1-yl acetate and (4E,10E)-dodecadien-1-yl acetate to male spotted tentiform leafminers Phyllonorycter blancardella (F.). Journal of Chemical Ecology. 30 (9). 1827-1838.
Status: Published -
El-Sayed, A.M., Delisle, J., De Lury, N., Gut, L.J., Judd, G.J.R., et al. (2003). Geographic variation in pheromone chemistry, antennal electrophysiology, and pheromone-mediated trap catch of North American populations of the obliquebanded leafroller. Environmental Entomology. 32 (3). 470-476.
Status: Published -
Tengo, J., Borg-Karlson, A.K., Valterova, I., Unelius, C.R., Taghizadeh, T., et al. (2003). (S)-(+)-linalool, a mate attractant pheromone component in the bee Colletes cunicularius. Journal of Chemical Ecology. 29 (1). 1-14.
Status: Published -
Correa, A.G., Batista-Pereira, L.G., Santangelo, E.M., Stein, K., Unelius, C.R., et al. (2002). Electrophysiological studies and identification of possible sex pheromone components of Brazilian populations of the sugarcane borer, Diatraea saccharalis. Zeitschrift für Naturforschung C - A Journal of Biosciences. 57 (7-8). 753-758.
Status: Published -
Santangelo, E.M., Coracini, M., Witzgall, P., Correa, A.G., Unelius, C.R. (2002). Identification, syntheses, and characterization of the geometric isomers of 9,11-hexadecadienal from female pheromone glands of the sugar cane borer Diatraea saccharalis. Journal of Natural Products. 65 (6). 909-915.
Status: Published -
Mozuraitis, R., Buda, V., Liblikas, I., Unelius, C.R., Borg-Karlson, A.K. (2002). Parthenogenesis, calling behavior, and insect-released volatiles of leafminer moth Phyllonorycter emberizaepenella. Journal of Chemical Ecology. 28 (6). 1191-1208.
Status: Published -
Kalinova, B., Hoskovec, M., Liblikas, I., Unelius, C.R., Hansson, B.S. (2001). Detection of sex pheromone components in Manduca sexta (L.). Chemical Senses. 26 (9). 1175-1186.
Status: Published -
Santangelo, E.M., Rotticci, D., Liblikas, I., Norin, T., Unelius, C.R. (2001). Resolution of an iridoid synthon, gastrolactol, by means of dynamic acetylation and lipase-catalyzed alcoholysis. Journal of Organic Chemistry. 66 (16). 5384-5387.
Status: Published -
Bäckman, A.C., Anderson, P., Bengtsson, M., Löfqvist, J., Unelius, C.R., et al. (2000). Antennal response of codling moth males, Cydia pomonella L. (Lepidoptera: Tortricidae), to the geometric isomers of codlemone and codlemone acetate. Journal of Comparative Physiology A. Sensory, neural, and behavioral physiology. 186 (6). 513-519.
Status: Published -
El-Sayed, A., Liblikas, I., Unelius, C.R. (2000). Flight and molecular modeling study on the response of codling moth, Cydia pomonella (Lepidoptera : Tortricidae) to (E,E)-8,10-dodecadien-1-ol and its geometrical isomers. Zeitschrift für Naturforschung C - A Journal of Biosciences. 55 (11-12). 1011-1017.
Status: Published -
Zhu, J.W., Unelius, C.R., Park, K.C., Ochieng, S.A., Obrycki, J.J., et al. (2000). Identification of (Z)-4-tridecene from defensive secretion of green lacewing, Chrysoperla carnea. Journal of Chemical Ecology. 26 (10). 2421-2434.
Status: Published -
Zhu, J.W., Ryne, C., Unelius, C.R., Valeur, P.G., Lofstedt, C. (1999). Reidentification of the female sex pheromone of the Indian meal moth, Plodia interpunctella : evidence for a four-component pheromone blend. Entomologia Experimentalis et Applicata. 92 (2). 137-146.
Status: Published -
Eiras, A.E., Kovaleski, A., Vilela, E.F., Chambon, J.P., Unelius, C.R., et al. (1999). Sex pheromone of the Brazilian apple leafroller, Bonagota cranaodes Meyrick (Lepidoptera, Tortricidae). Zeitschrift für Naturforschung C - A Journal of Biosciences. 54 (7-8). 595-601.
Status: Published -
Blute, I., Kronberg, B., Svensson, M., Unelius, R. (1998). Phase behaviour of alkyl glycerol ether surfactants. Tenside Surfactants Detergents. 35 (3). 207-212.
Status: Published -
Unelius, C.R., Sandell, J., Orrenius, C. (1998). Enantioselective preparation of the stereoisomers of 4-methylheptan-3-ol using Candida antarctica lipase B. Collection of Czechoslovak Chemical Communications. 63 (4). 525-533.
Status: Published -
El-Sayed, A., Unelius, C.R., Liblikas, I., Lofqvist, J., Bengtsson, M., et al. (1998). Effect of codlemone isomers on codling moth (Lepidoptera : Tortricidae) male attraction. Environmental Entomology. 27 (5). 1250-1254.
Status: Published -
Makranczy, G., Toth, M., Chambon, J.P., Unelius, C.R., Bengtsson, M., et al. (1998). Sex pheromone of pear moth, Cydia pyrivora. BioControl (Dordrecht). 43 (3). 339-344.
Status: Published -
Unelius, C.R., Liblikas, I., Mozuraitis, R. (1998). Synthesis and characterization of the four geometrical isomers of 3,5-dodecadienyl acetate. Acta Chemica Scandinavica. 52 (7). 930-934.
Status: Published -
Borg Karlson, A.K., Unelius, C.R., Valterova, I., Nilsson, L.A. (1996). Floral fragrance chemistry in the early flowering shrub Daphne mezereum. Phytochemistry. 41 (6). 1477-1483.
Status: Published -
Mattson, A., Orrenius, C., Ohrner, N., Unelius, C.R., Hult, K., et al. (1996). Kinetic resolution of chiral auxiliaries with C-2-symmetry by lipase-catalyzed alcoholysis and aminolysis. Acta Chemica Scandinavica. 50 (10). 918-921.
Status: Published -
Witzgall, P., Bäckman, A.C., Svensson, M., Bengtsson, M., Unelius, C.R., et al. (1996). Potential of a blend of E8,E10-120H and E8,E10-12Ac for mating disruption of codling moth, Cydia pomonella L (Lep, Tortricidae). Journal of applied entomology. 120 (1-5). 611-614.
Status: Published -
Karlson, J., Borg Karlson, A.K., Unelius, C.R., Shoshan, M.C., Wilking, N., et al. (1996). Inhibition of tumor cell growth by monoterpenes in vitro : Evidence of a Ras-independent mechanism of action. Anti-Cancer Drugs. 7 (4). 422-429.
Status: Published -
Witzgall, P., Chambon, J., Bengtsson, M., Unelius, C.R., Appelgren, M., et al. (1996). Sex pheromones and attractants in the Eucosmini and Grapholitini (Lepidoptera, Tortricidae). Chemoecology. 7 (1). 13-23.
Status: Published -
Unelius, C.R., Eiras, A., Witzgall, P., Bengtsson, M., Kovaleski, A., et al. (1996). Identification and synthesis of the sex pheromone of Phtheochroa cranaodes (Lepidoptera : Tortricidae). Tetrahedron Letters. 37 (9). 1505-1508.
Status: Published -
Unelius, C.R., Norin, T. (1994). A Short Synthesis of Gastrolactone. Natural product letters (Print). 5 (1). 61-68.
Status: Published -
Borgkarlson, A.K., Englund, F.O., Unelius, C.R. (1994). Dimethyl Oligosulphides, Major Volatiles Released from Sauromatum Guttatum and Phallus-Impudicus. Phytochemistry. 35 (2). 321-323.
Status: Published -
Witzgall, P., Bengtsson, M., Unelius, C.R., Löfqvist, J. (1993). Attraction of Pea Moth Cydia-Nigricana F (Lepidoptera, Tortricidae) to Female Sex-Pheromone (E,E)-8,10-Dodecadien-1-Yl Acetate, Is Inhibited by Geometric Isomers E,Z, Z,E, and Z,Z. Journal of Chemical Ecology. 19 (9). 1917-1928.
Status: Published -
Liotta, F., Unelius, C.R., Kozak, J., Norin, T. (1992). Synthesis of Carbocyclic Nucleoside Analogs by Palladium-Mediated Coupling. Acta Chemica Scandinavica. 46 (7). 686-688.
Status: Published -
Valterova, I., Unelius, C.R., Vrkoc, J., Norin, T. (1992). Enantiomeric Composition of Monoterpene Hydrocarbons from the Liverwort Conocephalum-Conicum. Phytochemistry. 31 (9). 3121-3123.
Status: Published -
Baeckstroem, P., Li, L., Polec, I., Unelius, C.R., Wimalasiri, W.R. (1991). Convenient Method for the Synthesis of Lineatin, a Pheromone Component of Trypodendron-Lineatum. Journal of Organic Chemistry. 56 (10). 3358-3362.
Status: Published -
Norin, T., Unelius, C.R. (1990). Selectivity in Diimide Reductions of Conjugated Enynes. Acta Chemica Scandinavica. 44 (1). 106-107.
Status: Published -
Byers, J.A., Hogberg, H.E., Unelius, C.R., Birgersson, G., Lofqvist, J. (1989). Structure Activity Studies on Aggregation Pheromone Components of Pityogenes-Chalcographus (Coleoptera, Scolytidae) - All Stereoisomers of Chalcogran and Methyl 2,4-Decadienoate. Journal of Chemical Ecology. 15 (2). 685-695.
Status: Published -
Baeckstrom, P., Jacobsson, U., Norin, T., Unelius, C.R. (1988). Synthesis and characterization of all four isomers of methyl 2,4-decadienoate for an investigation of the pheromone components of Pityogenes chaicographus. Tetrahedron. 44 (9). 2541-2548.
Status: Published -
Lanne, B.S., Schlyter, F., Byers, J.A., Lofqvist, J., Leufven, A., et al. (1987). Differences in Attraction to Semiochemicals Present in Sympatric Pine Shoot Beetles, (Coleoptera, Scolytidae) Tomicus minor and Tomicus piniperda. Journal of Chemical Ecology. 13 (5). 1045-1067.
Status: Published -
Bjorkling, F., Norin, T., Unelius, C.R., Miller, R.B. (1987). A Stereospecific Synthesis of All 4 Isomers of 9,11-Tetradecadienyl Acetate Using a General-Method Applicable to 1,3-Dienes. Journal of Organic Chemistry. 52 (2). 292-294.
Status: Published -
Bjorkling, F., Norin, T., Unelius, C.R. (1985). Synthesis of 8z,10z-Dodecadienyl Acetate Using a General Method Applicable to Z,Z-1,3-Dienes. Synthetic Communications. 15 (6). 463-472.
Status: Published
Doctoral thesis, comprehensive summary (Other academic)
- Unelius, R. (1989). Pheromone Synthesis : Conjugated Diene Systems and Oxygenated Carene Derivatives. Doctoral Thesis. STOCKHOLM, KTH Royal Institute of Technology. 31.