A mild and efficient protocol for the introduction of different protecting groups on 3-hydroxychromones (3-HCs) under phase-transfer catalysis conditions in toluene or dichloromethane/aqueous potassium hydroxide system i...
A rapid access to conformationally constrained gamma-lactams has been developed through the efficient RuO4-mediated oxidation of regioisomeric N-alkylisoxazolino-2-azanorbornane derivatives. The competition between exocy...