Synthesis of Cyclobutanones<i>via</i>Gold-Catalyzed Oxidative Rearrangement of Homopropargylic Ethers
作者:Mei Xu、Tian-Tian Ren、Kai-Bing Wang、Chuan-Ying Li
DOI:10.1002/adsc.201300227
日期:2013.9.16
of a gold catalyst and 8‐ethylquinoline N‐oxide, a homopropargylic ether bearing an electron‐rich aromatic ring or an alkenyl group can be converted into a cis‐cyclobutanone smoothly. An α‐oxo gold carbenoid is proved to be the key intermediate, and it can evolve into an oxonium ylide.
在金催化剂和8-乙基喹啉N-氧化物的存在下,带有富电子芳环或烯基的均丙基醚可以平稳地转化为顺式-环丁酮。事实证明,α-氧代金类胡萝卜素是关键的中间体,它可以演变成叶立德。