ARTICLE | doi:10.20944/preprints202112.0317.v1
Subject: Chemistry And Materials Science, Organic Chemistry Keywords: Pyrrolidines; 1,3-dipolar cycloaddition; azomethine ylides; cyanosulfones
Online: 21 December 2021 (08:56:55 CET)
A general approach to substituted pyrrolidines via [3 + 2] 1,3-dipolar cycloaddition between nonstabilized azomethine ylides and cyanosulfones was developed. The efficient method provides a series of substituted pyrrolidines bearing a quaternary carbon center in high yields (up to 98%) excellent diastereoselectivities (up to >25:1 dr) under ambient reaction conditions.