Stereospecific synthesis of 1,5-dien-3-ynes and 1,3,5-trienes application to the stereochemical identification of trienic sex pheromones
摘要:
A one-pot stereospecific synthesis of 1,5-dien-3-ynes (Z) or (E) is described, based upon a palladium-catalyzed cross-coupling reaction between butenynylzinc bromide, generated in situ from 1,1-difluoroethylene, and an adequate iodoalkene. These dienynes are converted into the corresponding trienic compounds by (Z) semi-hydrogenation.
Stereospecific synthesis of 1,5-dien-3-ynes and 1,3,5-trienes application to the stereochemical identification of trienic sex pheromones
摘要:
A one-pot stereospecific synthesis of 1,5-dien-3-ynes (Z) or (E) is described, based upon a palladium-catalyzed cross-coupling reaction between butenynylzinc bromide, generated in situ from 1,1-difluoroethylene, and an adequate iodoalkene. These dienynes are converted into the corresponding trienic compounds by (Z) semi-hydrogenation.
(9Z)-9,13-Tetradecadien-11-ynal, the sex pheromone of the avocado seed moth, Stenoma catenifer
作者:Jocelyn G. Millar、Mark Hoddle、J. Stephen McElfresh、Yunfan Zou、Christina Hoddle
DOI:10.1016/j.tetlet.2008.06.019
日期:2008.8
The highly unsaturated aldehyde (9Z)-9,13-tetradecadien-11-ynal and the corresponding alcohol were identified as possible sex pheromone components of the avocado seed moth, Stenoma catenifer. The aldehyde as a single component attracted more male moths than caged virgin female moths, and addition of the analogous alcohol and/or acetate decreased attraction. A stereospecific synthesis of the pheromone is described. (C) 2008 Elsevier Ltd. All rights reserved.
Stereospecific synthesis of 1,5-dien-3-ynes and 1,3,5-trienes application to the stereochemical identification of trienic sex pheromones
A one-pot stereospecific synthesis of 1,5-dien-3-ynes (Z) or (E) is described, based upon a palladium-catalyzed cross-coupling reaction between butenynylzinc bromide, generated in situ from 1,1-difluoroethylene, and an adequate iodoalkene. These dienynes are converted into the corresponding trienic compounds by (Z) semi-hydrogenation.