A One-Pot Approach to 2-Substituted-2-(Dimethoxyphosphoryl)-Pyrrolidines from Substituted tert-Butyl 4-Oxobutylcarbamates and Trimethyl Phosphite

Autor: Chang-Mei Si, Jia-Ming Guo, Wen-Ke Xu, Zhao-Dan Chen, Ling Chen, Bang-Guo Wei, Guo-Qiang Lin
Rok vydání: 2021
Předmět:
Zdroj: The Journal of Organic Chemistry. 86:11442-11455
ISSN: 1520-6904
0022-3263
Popis: A novel approach to 2-substituted-2-(dimethoxyphosphoryl)-pyrrolidines 7a-7o and 9a-9r has been developed, which features a TMSOTf-mediated one-pot intramolecular cyclization and phosphonylation of substituted tert-butyl 4-oxobutylcarbamates. The major advantages of this method include simple operation under mild reaction conditions, the use of cheap Lewis acid, and good to excellent yields with high diastereoselectivities (dr up to 99:1).
Databáze: OpenAIRE