Enzyme-assisted synthesis of (S)-1,3-dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle, and its (R)-enantiomer
摘要:
(S)-1,3-Dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle (Leptinotarsa decemlineata), and its (R)-isomer were synthesized by employing lipase-catalyzed asymmetric acetylation of (+/-)-2,3-epoxynerol as the key step. (C) 2005 Elsevier Ltd. All rights reserved.
Enzyme-assisted synthesis of (S)-1,3-dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle, and its (R)-enantiomer
摘要:
(S)-1,3-Dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle (Leptinotarsa decemlineata), and its (R)-isomer were synthesized by employing lipase-catalyzed asymmetric acetylation of (+/-)-2,3-epoxynerol as the key step. (C) 2005 Elsevier Ltd. All rights reserved.
Examples are given to illustrate the use of chemical and/or enzymatic asymmetric reactions in the synthesis of the new pheromones of the broad-horned flour beetle, flea beetle, currant stem girdler and Colorado potato beetle. The relationships between stereochemistry and bioactivity among pheromones are summarized to emphasize biodiversity as revealed in pheromone perception.
A novel synthesis of the aggregation pheromone of the Colorado potato beetle, Leptinotarsa decemlineata, has been developed based on a Sharpless asymmetric epoxidation in combination with a chemoselective alcohol oxidation using catalytic [(neocuproine)PdOAc]2OTf2. Employing this approach, the pheromone was synthesized in 3 steps, 80% yield and 86% ee from geraniol.
Enzyme-assisted synthesis of (S)-1,3-dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle, and its (R)-enantiomer
作者:Takuya Tashiro、Kenji Mori
DOI:10.1016/j.tetasy.2005.03.030
日期:2005.5
(S)-1,3-Dihydroxy-3,7-dimethyl-6-octen-2-one, the male-produced aggregation pheromone of the Colorado potato beetle (Leptinotarsa decemlineata), and its (R)-isomer were synthesized by employing lipase-catalyzed asymmetric acetylation of (+/-)-2,3-epoxynerol as the key step. (C) 2005 Elsevier Ltd. All rights reserved.