A Multicomponent Coupling Sequence for Direct Access to Substituted Quinolines
摘要:
A titanium-catalyzed three-component coupling reaction can be used to generate tautomers of N-aryl-1,3-diimines. Simple treatment of these products with acetic acid leads to cyclization forming quinoline derivatives in a one-pot procedure. The primary amines employed can be substituted anilines, aminonaphthalenes, or even heterocyclic amines, which leads to a variety of fused-ring heterocyclic frameworks. The one-pot yields varied from 25-71% for the 18 examples presented in this study.
p-TSA·H2O-Catalyzed Synthesis of 2,3-Diarylquinoline Derivatives via One-Pot Three-Component Reaction
作者:Abu Taleb Khan、Simra Faraz
DOI:10.1055/a-2107-6485
日期:2023.10
An environmentally benign synthesis of 2,3-diarylquinolines is reported via a one-potthree-component reaction from arylamines, benzaldehyde, and styrene oxide in the presence of 20 mol% p-TSA·H2O at 120 °C. This protocol does not require metal catalysts, additives, and extra oxidants. Mechanistic studies confirm the crucial role of p-TSA·H2O and the use of air as the sole oxidant makes this transformation
据报道,在 20 mol% p -TSA·H 2 O存在下,在 120 °C 下,通过芳基胺、苯甲醛和氧化苯乙烯的一锅三组分反应合成了 2,3-二芳基喹啉,对环境无害。该方案不需要金属催化剂、添加剂和额外的氧化剂。机理研究证实了p -TSA·H 2 O的关键作用,并且使用空气作为唯一的氧化剂使得这种转变非常有吸引力。该方案的显着特点是操作简单、底物范围广、反应时间短、原子经济性高、区域选择性好、收率好;一个 C-N 和两个 C-C 键的形成是一步完成的。
Quinoline-based proteasome inhibitors and uses thereof
申请人:Board of Trustees of Michigan State University
公开号:US10752590B2
公开(公告)日:2020-08-25
Described herein are quinoline compounds useful for, among other things, inhibition of the proteasome and for treatment of cancer and inflammation.