A practical copper-catalyzed multicomponent reaction has been developed for the synthesis of 1H-[1,2,3]triazolo[4,5-c]quinoline derivatives from commercially available 2-bromobenzaldehydes, aryl methyl ketones, and sodium azide. This protocol integrated consecutive base-promoted condensation, [3 + 2] cycloaddition, copper-catalyzed SNAr, and denitrogenation cyclization sequences. Preliminary mechanistic
已经开发了一种实用的铜催化多组分反应,用于从可商购的2-溴苯甲醛,芳基甲基酮和叠氮化钠合成1 H- [1,2,3]三唑并[4,5- c ]喹啉衍生物。该协议集成了连续的碱促进的缩合,[3 + 2]环加成,铜催化的S N Ar和脱氮环化序列。初步的机理研究表明,CuBr 2充当多功能催化剂以简化该多米诺骨牌工艺。温和的催化体系使一次操作即可有效构建一个C–C和四个C–N键。