An Asymmetric Synthesis of (+)-Grandisol, a Constituent of the Aggregation Pheromone of the Cotton Boll Weevil, via a Kinetic Resolution
作者:David P. G. Hamon、Kellie L. Tuck
DOI:10.1021/jo000853+
日期:2000.11.1
A novel approach to the asymmetric synthesis of (+)-grandisol, (1R, 2S)-isopropenyl-1-methylcyclobutaneethanol, involves the use of catalytic kinetic resolution of a primary allylic alcohol, [(1RS, 5SR)-5-methylbicyclo[3.2.0]hept-2-en-2-yl] methanol. The allylic alcohol is prepared in four steps from simple achiral materials involving the use of a modified Shapiro reaction. The resolved alcohol (95%
一种新的不对称合成(+)-大醇,(1R,2S)-异丙烯基-1-甲基环丁烷醇的新方法,涉及催化动力学拆分伯烯丙基醇[[(1RS,5SR)-5-甲基双环[ 3.2.0]庚-2-烯-2-基]甲醇。由简单的非手性材料分四个步骤制备烯丙醇,涉及使用改良的Shapiro反应。然后将拆分的醇(95%ee)分两步还原为相应的甲基烯烃,(1S,5R)-2,5-二甲基双环[3.2.0]庚-2-烯。通过改进的文献方法,通过三个步骤将该烯烃转化为(+)-大丁醇(95%ee)。