Aerobic Oxidative C–H Olefination of Arylamides with Unactivated Olefins via a Rh(III)-Catalyzed C–H Activation
作者:Subramanian Jambu、Chikkabagilu Nagaraju Shambhavi、Masilamani Jeganmohan
DOI:10.1021/acs.orglett.1c00646
日期:2021.4.16
An efficient Rh(III)-catalyzed aerobic oxidative C–H alkenylation of arylamides with unactivated alkenes is described. The olefination reaction was compatible with various substituted arylamides including primary, secondary, and tertiary as well as functionalized unactivated olefins. Meanwhile, ortho mono/bis-alkylated arylamides were synthesized in the reaction of arylamides with norbornene. In the
描述了一种有效的Rh(III)催化的芳酰胺与未活化烯烃的需氧氧化C–H烯基化反应。烯烃化反应与各种取代的芳基酰胺相容,包括伯,仲和叔以及官能化的未活化烯烃。同时,在芳基酰胺与降冰片烯的反应中合成了邻单/双烷基化芳基酰胺。在烯基化反应中,分子氧与有机酸一起用于下一个催化循环的活性催化剂的再生。提出了一种可能的反应机制,涉及到C–H活化/插入/β-氢化物消除,然后进行好氧氧化,并得到了氘标记研究的支持。