Synthesis of Polycyclic Indolines by Utilizing a Reduction/Cyclization Cascade Reaction
作者:Jingyu Zhang、Wei Xia、Meilin Qu、Saskia Huda、Jas S. Ward、Kari Rissanen、Markus Albrecht
DOI:10.1002/ejoc.202101191
日期:2021.12.7
Facile and versatile protocols for the synthesis of diverse novel polycyclic indolines are presented. The dearomatizing cyclization of indoles (1 and 2) proceeds well under mild conditions. Alkaloids tryptanthrin and phaitanthrin C have been prepared by using this developed protocol.
提出了用于合成各种新型多环二氢吲哚的简便而通用的协议。吲哚(1和2)的脱芳构化环化反应在温和条件下进行。生物碱色氨酸和苯菊酯 C 已通过使用此开发的协议制备。
Iridium Catalyzed Asymmetric Hydrogenation of Cyclic Imines of Benzodiazepinones and Benzodiazepines
Highly enantioselective Ir-catalyzed hydrogenation of seven-membered cyclic imines of benzodiazepinones and benzodiazepines was achieved with up to 96% ee. This method provides a direct access to synthesize a range of chiral cyclic amines existing in numerous important natural products and clinical drugs.