l-Proline: An Efficient Organocatalyst for the Synthesis of 5-Substituted 1H-Tetrazoles via [3+2] Cycloaddition of Nitriles and Sodium Azide
作者:Vikas Telvekar、Saket Bhagat
DOI:10.1055/s-0036-1591534
日期:2018.4
A simple and efficient route for the synthesis of a series of 5-substituted 1H-tetrazoles using l -proline as a catalyst from structurally diverse organic nitriles and sodium azide is reported. The prominent features of this environmentally benign, cost effective, and high-yielding l -proline-catalyzed protocol includes simple experimental procedure, short reaction time, simple workup, and excellent
报道了使用 l-脯氨酸作为催化剂从结构多样的有机腈和叠氮化钠合成一系列 5-取代 1H-四唑的简单有效的途径。这种环境友好、成本效益高且产率高的 l-脯氨酸催化方案的突出特点包括简单的实验程序、较短的反应时间、简单的后处理和优异的产率,使其成为危险的路易斯酸催化方法的更安全、更经济的替代方案。该协议已成功应用于广泛的基材,包括脂肪族和芳基腈、有机硫氰酸盐和氰胺。