U. Chiacchio et al., ALPHA-AMINO-ACIDS AS CHIRAL EDUCTS FOR STEREOSELECTIVE SYNTHESES OF PYRROLIDINE AND PYRROLIZIDINE SYSTEMS, Tetrahedron, 51(19), 1995, pp. 5689-5700
Homochiral functionalized pyrrolidine and pyrrolizidine systems have b
een achieved by stereoselective intramolecular 1,3-dipolar cycloadditi
on of homochiral nitrones, starting from homochiral amino acids, and b
y subsequent reduction of the obtained cycloadducts.