The clemmensen reduction of enol ethers: cyclopropyl ethers from mono- and di-methoxycyclohexa-1,4-dienes
作者:Irène Elphimoff-Felkin、Pierre Sarda
DOI:10.1016/s0040-4039(00)85915-8
日期:1983.1
Clemmensen reduction (zinc and hydrogen chloride in dry diethyl ether) of 1-methoxy- and 1,5-dimethoxy-cyclohexa-1,4-diene affords the cyclopropyl ethers, 1-methoxy- and 1,5-dimethoxy-bicyclo[3.1.0]hexane; in the presence of acetic anhydride, reduction of 6-acetyl-1-methoxy-6-methyl-cyclohexa-1,4-diene leads regiospecifically to 7-acetoxy-1-methoxy-6,7-dimethyl-bicyclo[4.1.0]hept-4-ene.
将1-甲氧基-和1,5-二甲氧基-环己-1,4-二烯进行Clemmensen还原(在干燥的乙醚中的锌和氯化氢)得到环丙基醚,1-甲氧基-和1,5-二甲氧基-双环[3.1 .0]己烷;在乙酸酐存在下,6-乙酰基-1-甲氧基-6-甲基-环己-1,4-二烯的还原反应导致区域特异性生成7-乙酰氧基-1-甲氧基-6,7-二甲基-双环[4.1.0 ]庚-4-烯。