Highly efficient synthesis of alkylidene- and allylidenecyclopropanes
作者:Theodore Cohen、Sang-Hun Jung、Matthew L. Romberger、Dennis W. McCullough
DOI:10.1016/0040-4039(88)80006-6
日期:1988.1
Alkylidene- and allylidenecyclopropanes are prepared by treating the intermediates formed upon addition of aldehydes to α-lithio(cyclopropyl)silanes with potassiumtert-butoxide.
Preparation of 2-vinylcyclobutanones viam-chloroperbenzoic acid oxidation of allylidenecyclopropanes
作者:Dennis W. McCullough、Theodore Cohen
DOI:10.1016/0040-4039(88)80007-8
日期:1988.1
Allylidenecyclopropanes are oxidized with mCPBA to give, after rearrangement, 2-vinylcyclobutanones in moderate to high yields; 2-aryl-, including 2-(2-furyl)-, cyclobutanones are prepared in an analogous fashion.