作者:J. Malcolm Bruce、Yusuf Roshan-Ali
DOI:10.1039/p19810002677
日期:——
Electron-releasing substituents at the 3-position of allyl phenyl ethers favour Claisen rearrangement of the allyl group to the 6-position, whereas electron-acceptors favour migration to the 2-position. 2-Acylhydroquinone 4-allyl ethers yield, predominantly, the 3-allyl isomers, probably because internal hydrogen bonding confers naphthalenoid character on the aryl residue.
烯丙基苯基醚3位的电子释放取代基有利于烯丙基的Claisen重排至6位,而电子受体则有利于向2位迁移。2-酰基氢醌4-烯丙基醚主要产生3-烯丙基异构体,这可能是因为内部氢键使芳基残基具有萘类特征。