PEG-400 as a carbon synthon: highly selective synthesis of quinolines and methylquinolines under metal-free conditions
作者:Chengcheng Ding、Shichen Li、Kaili Feng、Chen Ma
DOI:10.1039/d1gc01617b
日期:——
The remarkable feature of this work was using green, non-toxic PEG-400 as a carbon synthon for highly selective synthesis of quinolines (quinoxalines) and methylquinolines (methylquinoxalines) under metal-free conditions.
A silver-catalyzed formation of C-C bond for the construction of a series of polysubstituted quinolines from arylamines, aldehydes, and ketones or arylamines and 1,3-diketones has been developed. The transformation is effective for a broad range of substrates, thus enabling the expansion of constituent architectures on the heterocyclic framework. This use of a single catalytic system to mediate chemical transformations in a synthetic operation is important for the development of new atom-economic strategies and this strategy is efficient in building complex structures from simple starting materials in an environmentally benign fashion. (C) 2015 Elsevier Ltd. All rights reserved.