An Efficient Route to Chiral trans-2,5-Dialkylpyrrolidines via Stereoselective Intramolecular Amidomercuration
An intramolecular amidomercuration of α-butylated 4-pentenylcarbamate 5 predominantly provided trans-2,5-disubstituted pyrrolidine 6, which was elaborated to chiral trans-5-butyl-2-alkylpyrrolidines 10 and 13, constituents of ant venoms.