Stereoselective synthesis of six- and seven-membered ether rings based on the ring expansion
作者:Tadashi Nakata、Sumihiro Nomura、Hiroko Matsukura
DOI:10.1016/0040-4039(95)02131-0
日期:1996.1
Six- and seven-membered ether rings were stereoselectively synthesized based on the rearrangement of the cyclic ether with the simultaneous ring expansion. Treatment of ether having a mesylate or bromide group as the leaving group on the side chain with Zn(OAc)2 or AgOAc stereoselectively produced the ring expanded ether in good yield.
基于环状醚的重排并同时扩环,立体选择性地合成了六元和七元醚环。用Zn(OAc)2或AgOAc立体选择性地处理在侧链上具有甲磺酸酯基团或溴化物基团作为离去基团的醚,以高收率选择性地产生了扩环醚。