Synthesis of Substituted Phenols by Using the Ring-Closing Metathesis/Isoaromatization Approach
作者:Kazuhiro Yoshida、Rintaro Narui、Tsuneo Imamoto
DOI:10.1002/chem.200800943
日期:2008.10.29
Ring-closing olefin metathesis (RCM) of 4-methylene-1,7-octadien-3-ones 2, followed by isomerization of the carbon--carbon double bond of 6-methylene-2-cyclohexenones 3 from exo to endo, produced various phenols 4. As an application of the method, the RCM/Mizoroki-Heck reaction of 2 was proven to be also effective for the synthesis of phenols having an additional substituent at ortho-benzylic position
产生4-亚甲基-1,7-辛二烯-3-酮2的闭环烯烃复分解(RCM),然后将6-亚甲基-2-环己烯酮3的碳-碳双键从外向内异构化4.该方法的应用证明,RCM / Mizoroki-Heck反应为2对合成在邻苄基位置上具有附加取代基的酚也有效。