^§ Authors contributed equally to this work.

Abstract

A copper-catalyzed expedient, practical, and straightforward approach for the one-pot three-component modular synthesis of multisubstituted imidazoles has been described by using arylacetic acids, N-arylbenzamidines, and nitroalkanes. The reaction involves simultaneous activation of C–H and N–H bonds of arylacetic acids and N-arylbenzamidines, respectively. The use of inexpensive copper sulfate as a catalyst, readily available starting materials, and Celite-free workup makes this protocol economically viable. Multisubstituted imidazoles were obtained in moderate to good yields with significant functional group tolerance and high regioselectivity.

A copper-catalyzed expedient, practical, and straightforward approach for the one-pot three-component modular synthesis of multisubstituted imidazoles has been described by using arylacetic acids, N-arylbenzamidines, and nitroalkanes. The reaction involves simultaneous activation of C–H and N–H bonds of arylacetic acids and N-arylbenzamidines, respectively. The use of inexpensive copper sulfate as a catalyst, readily available starting materials, and Celite-free workup makes this protocol economically viable. Multisubstituted imidazoles were obtained in moderate to good yields with significant functional group tolerance and high regioselectivity.

中文翻译：

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铜催化的C–H和N–H键的同时活化：多取代的咪唑的三组分一锅级联反应

^§作者对此工作做出了同等贡献。

抽象的

已经通过使用芳基丙烯酸，N-芳基苯甲m和硝基烷烃描述了铜催化的方便，实用和直接的方法用于多取代的咪唑的一锅三组分模块化合成。该反应涉及同时活化芳基丙烯酸和N-芳基苯甲C的CH键和NH键。使用廉价的硫酸铜作为催化剂，容易获得的起始原料以及无硅藻土的处理，使得该方案在经济上可行。多取代的咪唑以中等至良好的产率获得，具有显着的官能团耐受性和高区域选择性。

已经通过使用芳基丙烯酸，N-芳基苯甲m和硝基烷烃描述了铜催化的方便，实用和直接的方法用于多取代的咪唑的一锅三组分模块化合成。该反应涉及同时活化芳基丙烯酸和N-芳基苯甲C的CH键和NH键。使用廉价的硫酸铜作为催化剂，容易获得的起始原料以及无硅藻土的处理，使得该方案在经济上可行。多取代的咪唑以中等至良好的产率获得，具有显着的官能团耐受性和高区域选择性。