Sequential Pd(0)/Fe(III) Catalyzed Azide–Isocyanide Coupling/Cyclization Reaction: One-Pot Synthesis of Aminotetrazoles
作者:Ramdas S. Pathare、Arshad J. Ansari、Sarika Verma、Anand Maurya、Antim K. Maurya、Vijai K. Agnihotri、Ashoke Sharon、Ram T. Pardasani、Devesh M. Sawant
DOI:10.1021/acs.joc.8b01261
日期:2018.8.17
A rapid and efficient synthesis of aminotetrazole from aryl azides, isocyanides, and TMSN3 is developed. The reaction is promoted by sequential Pd(0)/Fe(III) catalysis. The reaction sequence utilizes the Pd-catalyzed azide–isocyanide denitrogenative coupling reaction to generate unsymmetric carbodiimide in situ, which reacts with TMSN3 in the presence of FeCl3 in a single pot. The methodology has distinct
已开发了由芳基叠氮化物,异氰酸酯和TMSN 3快速有效地合成氨基四唑的方法。依次进行Pd(0)/ Fe(III)催化可促进反应。该反应序列利用Pd催化的叠氮化物-异氰化物脱氮偶联反应在原位生成不对称的碳二亚胺,该碳二亚胺与TMSN 3在存在FeCl 3的情况下在一个罐中反应。与传统的化学合成方法相比,该方法具有明显的优势,在传统的合成方法中,化学计量规模使用有毒的Hg和Pb盐。