DBU‐Catalyzed Glutamation of Phenols, Thiophenols, Secondary Amines and Imides
作者:Xue‐Ying Wang、Si‐Kai Zhu、Mei‐Ling Cheng、Ru Jiang、Sheng‐Yong Zhang、Ping‐An Wang
DOI:10.1002/ejoc.202400184
日期:2024.6.10
An organic-superbase-catalyzed glutamation of phenols, thiophenols, secondary amines and imides has been realized through Michael addition between α,β-unsaturated esters and benzophenone-imines of glycineesters. 3-Substituted glutamic acid esters were obtained in excellent yields and diastereoselectivities (up to quantitative yield and >20 : 1 dr) in THF by using LiBr as an additive at room temperature