Insect pheromones and their analogs. VIII. Synthesis of the (Z) and (E) isomers of 2-methyloctadec-7-ene and of 2-methyl-7,8-epoxyoctadecane
作者:V. N. Odinokov、G. G. Balezina、U. M. Dzhemilev、G. Yu. Ishmuratov、D. V. Amirkhanov、V. P. Krivonogov、F. Kh. Sitnikova、G. A. Tolstikov
DOI:10.1007/bf00576092
日期:1983.9
A highly stereospecific method for the synthesis of racemic (Z)-disparlure has been developed which is based on the reduction of 2-methyloctadec-7-yne with the aid of 9-borabicyclo[3.3.1]nonane and the epoxidation of the resulting (Z)-2-methyloctadec-7-ene with p-methoxycarbonylperbenzoic acid. The13C NMR spectra of the (Z) and (E) isomers of 2-methyloctadec-7-ene and 2-methyl-7,8-epoxyoctadecane,
已开发出一种用于合成外消旋 (Z)-disparlure 的高度立体有择的方法,该方法基于在 9-硼双环 [3.3.1] 壬烷的帮助下还原 2-methyloctadec-7-yne 和所得的环氧化(Z)-2-methyloctadec-7-ene 与对甲氧基羰基过苯甲酸。给出了 2-methyloctadec-7-ene 和 2-methyl-7,8-epoxyoctadecane 的 (Z) 和 (E) 异构体的 13 C NMR 光谱,它们明确地证实了这些化合物的结构。已经确定 (E)-2-methyloctadec-7-ene 表现出中等的引诱活性,而 (Z) 异构体不吸引吉普赛蛾。添加 5-25% 的 (E)-disparlure 会增加 (Z)-disparlure 的生物活性。