Aminative rearrangement of 2-alkoxy-3,4-dihydro-2H-pyrans: a novel stereocontrolled route to substituted pyrrolidines†
Abstract
Aziridination of 2-alkoxy-3,4-dihydro-2H-pyrans leads to rearrangement and stereocontrolled formation of 5-alkoxypyrrolidines which may be reduced to