Transesterification for Synthesis of Carboxylates Using Aldehydes as Acyl Donors via C–H and C–O Bond Activations
作者:Yong-Sheng Bao、Chao-Yue Chen、Zhi-Zhen Huang
DOI:10.1021/jo3012573
日期:2012.9.21
A new type of transesterification between aryl, heteroaryl, alkyl N-heteroarene-2-carboxylates and various aldehydes by C–H and C–O bond activations has been developed for the synthesis of versatile carboxylates. A possible mechanism containing oxidative addition of acyl–O bond in parent ester and radical cleavage of sp2 C–H bond in aldehyde is proposed.
已经开发了一种通过CH和C-O键活化在芳基,杂芳基,烷基N-杂芳基-2-羧酸酯和各种醛之间进行新型酯交换的方法,用于合成多种羧酸酯。提出了一种可能的机理,其中包括母体酯中酰基-O键的氧化加成和醛中sp 2 C-H键的自由基裂解。