Xu, Yan-Li et al. published their research in Tetrahedron Letters in 2022 |CAS: 517-23-7

The Article related to squaramide catalyst preparation, alpha amino gamma butyrolactone enantioselective preparation, benzoyl butyrolactone azodicarboxylate squaramide catalyst electrophilic amination and other aspects.Synthetic Route of 517-23-7

On April 13, 2022, Xu, Yan-Li; Wang, Yu-Xia; Wen, Gen-Fa; Da, Chao-Shan published an article.Synthetic Route of 517-23-7 The title of the article was Organocatalytic enantioselective electrophilic amination of benzoyl butyrolactones. And the article contained the following:

Organocatalytic electrophilic amination of benzoyl butyrolactones with azodicarboxylates was demonstrated to highly efficiently prepare quaternary carbon stereocenter-bearing α-amino-γ-butyrolactones I [R = Me, Ph, OBn, etc.], key framework in numerous bioactive compounds The squaramide catalyst II realized the highest yield (99%) and enantioselectivity (93%). The experimental process involved the reaction of 3-Acetyldihydrofuran-2(3H)-one(cas: 517-23-7).Synthetic Route of 517-23-7

The Article related to squaramide catalyst preparation, alpha amino gamma butyrolactone enantioselective preparation, benzoyl butyrolactone azodicarboxylate squaramide catalyst electrophilic amination and other aspects.Synthetic Route of 517-23-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics