A Convenient Preparative Method for β-Lactams from β-Amino Acids Using Sulfenamide/Triphenylphosphine

Article abstract of DOI:10.1016/0040-4039(95)00658-Y

β-,β-, and δ-Amino acids were easily cyclized in high yields to corresponding β-,γ-, and δ-lactams by treatment with N-alkyl-2-benzothiazolsulfenamide and triphenylphosphine.