A Highly Stereospecific Procedure for the Transformation of Allylic Alcohols into 1,3-Dienes
作者:Arata Yasuda、Shin Tanaka、Hisashi Yamamoto、Hitosi Nozaki
DOI:10.1246/bcsj.52.1752
日期:1979.6
title synthesis involves (1) epoxidation of allylic alcohols with t-butyl hydroperoxide in the presence of vanadium catalyst followed by trimethylsilylation, (2) specific oxirane ring opening by means of diethylaluminum 2,2,6,6-tetramethylpiperidide and subsequent desilylation producing 3-ene-1,2-diols, and (3) removal of both hydroxyl groups through bromination with a mixture of phosphorus tribromide
标题合成包括 (1) 在钒催化剂的存在下,烯丙醇与叔丁基氢过氧化物的环氧化,然后是三甲基硅烷化,(2) 通过二乙基铝 2,2,6,6-四甲基哌啶进行特定的环氧乙烷开环和随后的脱甲硅烷化生产3-烯-1,2-二醇,以及 (3) 通过用三溴化磷和溴化铜 (I) 的混合物进行溴化和连续脱溴化锌来去除两个羟基。反应序列已经相当成功地扩展到从橙花醇中制备 β-月桂烯,以特定方式从香叶醇制备反式 β-罗勒烯,以及从它们的生物前体制备 α 和 β-法呢烯。以环十二烯为原料,采用该方法高效制备了红铃虫C12性信息素。