Novel Synthesis of Highly Functionalized Pyrazolines and Pyrazoles by Triphenylphosphine-Mediated Reaction of Dialkyl Azodicarboxylate with Allenic Esters<sup>†</sup>
收藏NIAID Data Ecosystem2026-03-06 收录
数据链接：
官方服务：
资源简介：
Reaction of the Huisgen zwitterion, derived from triphenylphosphine and dialkyl azodicarboxylate, with allenic esters affords highly functionalized pyrazolines and pyrazoles. The crystal structure of pyrazoline derivative 7a showed extensive C−H···O interactions. Pyrazole formation proceeds via a novel nitrogen to carbon migration of the carboalkoxy group.
创建时间：
2016-05-05
