71777-34-9Relevant articles and documents
Hydrolytic kinetic resolution of terminal mono- and bis-epoxides in the synthesis of insect pheromones
Chow, Sharon,Kitching, William
, p. 779 - 793 (2007/10/03)
Hydrolytic kinetic resolution (HKR) of functionalised epoxides using (salen)Co(OAc) complexes provides enantiomerically enriched epoxides and diols, which have been transformed into important insect sex pheromones. In this general approach, (-)-(R)- and (+)-(S)-10-methyldodecyl acetates from the smaller tea tortrix moth were obtained, as was (-)-(R)-10-methyltridecan-2-one from the southern corn rootworm. The (S)-epoxide obtained from undec-1-en-6-yne was transformed to (-)-(R)-(Z)-undec-6-en-2-ol (Nostrenol) from ant-lions. HKR of appropriate bisepoxides was also investigated, and transformations of the resulting bisepoxides and epoxydiols provided (-)-(1R,7R)-1,7-dimethylnonylpropanoate from corn rootworms, (-)-(6R,12R)-6,12-dimethylpentadecan-2-one from the female banded cucumber beetle, and (-)-(2S,11S)-2,11-diacetoxytridecane and (+)-(2S,12S)-2,12-diacetoxytridecane from female pea-midges.
Chemoenzymatic synthesis of (R)-(+)-2-methylbutan-1-ol, a chiral synthon for the preparation of optically active pheromones
Geresh, Shimona,Valiyaveettil, Thomas J.,Lavie, Yair,Shani, Arnon
, p. 89 - 96 (2007/10/03)
Optically active (R)-(+)-2-methylbutan-1-ol (which is not commercially available) was prepared by a chemoenzymatic synthesis, in which the key step involved a reduction catalyzed by baker's yeast. The synthon was used in the synthesis of (R)-10-methyldodecan-1-yl acetate, the chiral methyl-branched pheromone of Adoxophyes sp.
Stereospecific Dehydrative Alkylation of Bis-Sulfones: Synthesis of a Lesser Tea Tortrix Pheromone
Yu, Jurong,Cho, Hyun-Sung,Falck, J. R.
, p. 5892 - 5894 (2007/10/02)
The intra- and intermolecular condensation of alcohols with bis-sulfone methylenes, i.e., dehydrative alkylation, using DEAD and Ph3P proceeds stereospecifically at room temperature under essentially neutral conditions affording good to excellent yields o