NaCl as Catalyst and Water as Solvent: Highly <i>E</i>-Selective Olefination of Methyl Substituted <i>N</i>-Heteroarenes with Benzyl Amines and Alcohols
作者:Susanta Hazra、Vikas Tiwari、Ashutosh Verma、Pritam Dolui、Anil J. Elias
DOI:10.1021/acs.orglett.0c01851
日期:2020.7.17
Oxidative coupling of benzylamines and alcohols with methyl substituted N-heteroarenes such as quinolines and quinoxalines has been achieved using chloride, a sea abundant anion as the catalyst for practical synthesis of a wide range of E-disubstituted olefins in aqueous medium. Detailed mechanistic studies and control experiments were carried out to deduce the reaction mechanism which indicated that
Focused microwave irradiation promoted the very efficient synthesis of 2-styrylquinolines by reaction between quinaldines and benzaldehydes or cinnamaldehydes in the presence of acetic anhydride.