Copper-catalysed oxidative Csp3–H methylenation to terminal olefins using DMF†
Abstract
A copper-catalysed direct oxidative Csp3–H methylenation to terminal olefins using DMF as one carbon source was developed. In this reaction, various functional groups were well tolerated, thus providing a simple way to construct arylvinylketones and arylvinylpyridines. The preliminary mechanistic investigations revealed that CH2 was from DMF (N–CH3).