Facile construction of <i>C</i>,<i>N</i>-disulfonated 5-amino pyrazoles through an iodine-catalyzed cascade reaction
作者:Meiqi Geng、Jinqiang Kuang、Weiwei Fang、Maozhong Miao、Yongmin Ma
DOI:10.1039/d2ob01647h
日期:——
A green and facile synthesis of previously unreported C,N-disulfonated 5-amino pyrazoles was established through an iodine-catalyzed cascade reaction of easily accessible sulfonyl hydrazides, β-ketonitriles, and sodium sulfinates. Diverse C,N-disulfonated 5-amino pyrazoles could be obtained in 38–88% yields. This methodology features green and mild conditions, broad substrate scope, and effortless