Catalyst-free, one-pot strategy to access 3-substituted-5-amino-1,2,4-thiadiazoles in water
作者:Chaithra Nagaraju、Swarup Hassan Ashok、Yatheesh Narayana、Sandhya C. Nagarakere、Mantelingu Kempegowda、Rangappa S. Kanchugarkoppal
DOI:10.1080/00397911.2021.1986840
日期:2021.12.2
Abstract A protocol has been devised for the synthesis of 3-substituted 5-amino-1,2,4-thiadiazoles utilizing isothiocyanates, amidoximes and water as an eco-friendly solvent. The strategy involves consecutive C−N and S−N bonds formation in a one-pot reaction under catalyst-free conditions. Operational simplicity, low cost, broad substrate scope and readily available starting materials are the main
摘要 已经设计了一种使用异硫氰酸酯、胺肟和水作为环保溶剂合成 3-取代 5-氨基-1,2,4-噻二唑的方案。该策略涉及在无催化剂条件下的一锅反应中连续形成 CN 和 SN 键。该协议的主要特点是操作简单、成本低、基材范围广泛和易于获得的起始材料。