Facile Synthesis of 5-Benzamido-4-Diazopyrazole Derivatives, a Class of Biologically Active Agents and Key Intermediates
作者:Giuseppe Daidone、Maria Luisa Bajardi、Demetrio Raffa、Benedetta Maggio
DOI:10.1080/00397919508011756
日期:1995.5
Abstract By reacting l-R1-3-R2-5-(R3-substituted)benzamidopyrazoles with a great ex-cess of nitrous acid in acetic acid media, the related 4-diazoderivatives in 65–80% yields were obtained.