Manganese(I) Catalyzed α-Alkenylation of Amides Using Alcohols with Liberation of Hydrogen and Water
作者:Biplab Keshari Pandia、Chidambaram Gunanathan
DOI:10.1021/acs.joc.1c00685
日期:2021.8.6
Herein, unprecedented manganese-catalyzed direct α-alkenylation of amides using alcohols is reported. Aryl amides are reacted with diverse primary alcohols, which provided the α,β-unsaturated amides in moderate to good yields with excellent selectivity. Mechanistic studies indicate that Mn(I) catalyst oxidizes the alcohols to their corresponding aldehydes and also plays an important role in efficient
Solvent-controlled selective synthesis of amides and thioureas from isothiocyanates
作者:Pinyong Zhong、Jiajia Wu、Junran Wu、Kunming Liu、Changfeng Wan、Jin-Biao Liu
DOI:10.1016/j.tetlet.2022.154099
日期:2022.9
A solvent-controlled selective synthesis of amides and thioureas from isothiocyanates in the presence of base is described. Amides were obtained via the base-promoted reaction of isothiocyanates and nitrile solvent. Interestingly, the use of water instead of a nitrile solvent provided symmetrical and unsymmetrical disubstituted thioureas. This protocol exhibits excellent chemoselectivity and practicality