Unsaturated heterocyclic systems. LXIX. Transition-state geometry of a (2 + 2) cycloaddition reaction. Asymmetric synthesis in a sulfene-enamine condensation
Unsaturated heterocyclic systems. LXIX. Transition-state geometry of a (2 + 2) cycloaddition reaction. Asymmetric synthesis in a sulfene-enamine condensation