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
Oxygen-Dependent Ligand-Controlled Iron-Catalyzed Chemoselective Synthesis of Olefins and Vinyl Nitriles
作者:Amit Kumar Guin、Subhajit Chakraborty、Subhankar Khanra、Santana Chakraborty、Nanda D. Paul
DOI:10.1021/acs.orglett.4c00455
日期:2024.4.5
An oxygen-dependent ligand-controlled chemoselective synthesis of vinyl nitriles and E-olefins by coupling a variety of alcohols and benzyl cyanides, catalyzed by a well-characterized, air-stable, easy-to-prepare Fe(II) catalyst (1a) bearing a redox-active arylazo pincer (L1a) is reported. The azo-moiety of the ligand backbone acts as an electron and hydrogen reservoir, enabling catalyst 1a to efficiently
在特征良好、空气稳定、易于制备的 Fe(II) 催化剂的催化下,通过偶联多种醇和苯乙腈,进行乙烯基腈和E-烯烃的氧依赖性配体控制化学选择性合成 ( 1a )据报道,其具有氧化还原活性芳基偶氮钳( L 1a )。配体主链的偶氮部分充当电子和氢储存库,使催化剂1a能够分别在氧气和氩气气氛下选择性地以中等至良好的产率有效地生产广谱乙烯基腈和E-烯烃。