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。
One-Pot Synthesis of 4-Substituted 1<i>H</i>-[1,2,3]triazolo[4,5-<i>c</i>]quinolines Through CuO-Promoted Tandem Cyclization Reactions of (<i>E</i>)-3-(2-Bromoaryl)-1-arylprop-2-en-1-ones with Sodium Azide
A facile and efficient protocol for the synthesis of 4-substituted-1H-[1,2,3]triazolo[4,5-c]quinolinesthrough a CuO-promotedtandemcyclizationreaction has been developed. This method allows for the construction of two heterocyclic rings in a one-potreaction of readily available (E)-3-(2-bromoaryl)-1-arylprop-2-en-1-ones and sodiumazide without the addition of any additive. A series of triazole-fused