作者:Chengjie Li、Tianyi Zhang、Zhe Zeng、Xiujun Liu、Yunfeng Zhao、Bao Zhang、Yaqing Feng
DOI:10.1021/ol203020x
日期:2012.1.20
One new route for the synthesis of amino-substituted indazol-3,5-dione via the amidation reaction of o-carboxyazobenzenes is reported. Optimization which includes effects of the solvents, molar ratio of starting materials, and dehydrating agents on this reaction has been studied. A possible reaction mechanism has been proposed on the basis of the product's structure, and the steric hindrance could be the main reason for low yield.