Activation of Primary Amines by Copper(I)-Based Lewis Acid Promoters in the Solventless Synthesis of Secondary Propargylamines
作者:Cristina Cimarelli、Federica Navazio、Federico Rossi、Fabio Del Bello、Enrico Marcantoni
DOI:10.1055/s-0037-1612253
日期:2019.6
reaction provided good yields and a wider applicability, with the added value given by a safer procedure. Primary amines are activated by copper(I)-based Lewis acid promoters in an A3-coupling one-pot solventless reaction with aldehydes and phenylacetylene for the synthesis of secondary propargylamines. The reaction is promoted by a CuSO4/NaI system, a practical precursor of the in situ generated effective
抽象的 伯胺在与醛和苯乙炔的A 3偶联一锅法无溶剂反应中被基于铜(I)的路易斯酸助催化剂活化,以合成仲炔丙胺。CuSO 4 / NaI系统(原位生成的有效CuI / I 2系统的实用前体)促进了反应,该方法效果很好,但仅在有限的几个示例中有效。一锅两步反应中用CeCl 3 ·7H 2 O取代I 2可以提供良好的收率和更广泛的适用性,并通过更安全的程序获得附加值。 伯胺在与醛和苯乙炔的A 3偶联一锅法无溶剂反应中被基于铜(I)的路易斯酸助催化剂活化,以合成仲炔丙胺。CuSO 4 / NaI系统(原位生成的有效CuI / I 2系统的实用前体)促进了反应,该方法效果很好,但仅在有限的几个示例中有效。一锅两步反应中用CeCl 3 ·7H 2 O取代I 2可以提供良好的收率和更广泛的适用性,并通过更安全的程序获得附加值。