Chiral sulfur compounds. II. Diastereoselective additions of (R)-(+)-methyl p-tolyl sulfoxide anion to imines. Asymmetric synthesis of (R)-(+)-tetrahydropalmatine
Chiral sulfur compounds. II. Diastereoselective additions of (R)-(+)-methyl p-tolyl sulfoxide anion to imines. Asymmetric synthesis of (R)-(+)-tetrahydropalmatine