Ester‐directedolefination of acrylates via rhodium(III)‐catalysis was developed. Various alkenes were reacted with acrylates to give the desired products in high stereoselectivity. Mechanistic investigations revealed that ester‐directed CH bond activation was the key step to this reaction.
Pd(0)-catalyzed cross-coupling of allyl halides with α-diazocarbonyl compounds or N-mesylhydrazones: synthesis of 1,3-diene compounds
作者:Kang Wang、Shufeng Chen、Hang Zhang、Shuai Xu、Fei Ye、Yan Zhang、Jianbo Wang
DOI:10.1039/c6ob00454g
日期:——
With palladiumcatalysis, allyl bromides or chlorides react with α-diazocarbonyl compounds or N-mesylhydrazones to afford 1,3-diene derivatives. The reaction represents a novel and efficient method for the synthesis of 1,3-butadiene derivatives. Mechanistically, the reaction is proposed to follow a pathway involving the formation of a π-allylic palladium carbene complex and subsequent migratory insertion