Atmosphere-Controlled Chemoselectivity: Rhodium-Catalyzed Alkylation and Olefination of Alkylnitriles with Alcohols
作者:Junjun Li、Yuxuan Liu、Weijun Tang、Dong Xue、Chaoqun Li、Jianliang Xiao、Chao Wang
DOI:10.1002/chem.201704037
日期:2017.10.17
The chemoselectivealkylation and olefination of alkylnitriles with alcohols have been developed by simply controlling the reaction atmosphere. A binuclear rhodium complex catalyzes the alkylation reaction under argon through a hydrogen‐borrowing pathway and the olefination reaction under oxygen through aerobic dehydrogenation. Broad substrate scope is demonstrated, permitting the synthesis of some
Iron-Catalyzed Alkylation of Nitriles with Alcohols
作者:Wei Ma、Suya Cui、Huamin Sun、Weijun Tang、Dong Xue、Chaoqun Li、Juan Fan、Jianliang Xiao、Chao Wang
DOI:10.1002/chem.201803762
日期:2018.9.6
A general, efficient iron‐catalyzedα‐alkylation of nitriles with primary alcohols through a hydrogen‐borrowing pathway has been developed, allowing a wide variety of alkylated nitriles to be readily accessible. Detailed mechanistic studies suggest that the reaction proceeds via an olefin intermediate with the turnover rate limited by the hydrogenation of the olefin with an iron hydride. Apart from