作者:Charles E. Tucker、Paul Knochel
DOI:10.1055/s-1993-25899
日期:——
1,1-Dimetalloalkanes obtained by the allylzincation of alkenylmagnesium compounds react smoothly with various functionalized alkylidenemalonates providing functionalized Z-olefins in good yields. If dimenthyl alkylidenemalonates are used, then excellent stereoselectivities are observed (92:8 to 100:0). An application to a short stereospecific synthesis of an insect pheromone [(Z)-7-dodecenyl acetate] is described (> 99.9% Z, 70% overall yield).
通过烯基镁化合物的烯丙基锌化获得的 1,1-二金属烷烃与各种官能化亚烷基丙二酸酯顺利反应,以良好的产率提供官能化 Z-烯烃。如果使用亚烷基丙二酸二薄荷酯,则观察到优异的立体选择性(92:8至100:0)。描述了昆虫信息素 [(Z)-7-十二烯基乙酸酯] 的短立体定向合成的应用(> 99.9% Z,70% 总产率)。