Cascade Synthesis of 5-Aminotetrazoles from Isonitriles and <i>N,N</i>-Dibromoarylsulfonamides via Carbodiimide Coupling with Azide
作者:Debashish Mishra、Sauvik Kashyap、Prodeep Phukan
DOI:10.1021/acs.joc.3c00041
日期:2023.7.7
A cascade protocol for the synthesis of aminotetrazoles have been developed by treating isonitriles, N,N-dibromoarylsulfonamides, and sodium azides in the presence of K2CO3. This metal-free process proceeds via an isolable carbodiimide intermediate at room temperature, which could further react with sodium azide and subsequently cyclizes intermolecularly to provide 5-aminotetrazoles within a short
通过在 K 2 CO 3存在下处理异腈、 N,N-二溴芳基磺酰胺和叠氮化钠,开发了用于合成氨基四唑的级联方案。这种无金属过程在室温下通过可分离的碳二亚胺中间体进行,该中间体可以进一步与叠氮化钠反应,随后在短时间内进行分子间环化,生成 5-氨基四唑。本协议的显着成就是底物范围广、产量良好至优异、以及良好的官能团耐受性。