Stereocontrolled synthesis of all of the four possible stereoisomers of erythro-3,7-dimethyl-pentadec-2-yl acetate and propionate, the sex pheromone of the pine sawflies
作者:K. Mori、S. Tamada
DOI:10.1016/0040-4020(79)80054-x
日期:1979.1
All of the four possible stereoisomers of 2,3-erythro-3,7-dimethylpentadecan-2-ol 1 were synthesized by a stereospecific SN2 oxirane cleavage of (2S,3S)-2,3-epoxybutane or its antipode with lithium di[(R)- or (S)-4-methyldodecyl]cuprate. Their acetates or propionates were prepared to test their pheromone activity.
通过(2 S,3 S)-2,3-环氧丁烷或其对映体的立体特异性S N 2环氧乙烷裂解,合成了2,3-赤--3,7-二甲基十五烷基-2-醇1的所有四种可能的立体异构体。用二[(R)-或(S)-4-甲基十二烷基]铜酸锂。准备它们的乙酸盐或丙酸酯以测试其信息素活性。
Synthesis and gas chromatographic separation of the eight stereoisomers of diprionol and their acetates, components of the sex pheromone of pine sawflies
The present report describes syntheses of the eight possible stereoisomers of 3,7-dimediyl-2-pentadecanol 1, and the corresponding acetates. The latter are components of the sexpheromone of the Neodiprion, Diprion and Gilpinia genera (Diprionidae). Synthetic intermediates were prepared from either chiral starting materials or by asymmetricsyntheses. The stereochemical compositions of the isomeric