Lead(IV) Acetate Oxidations of 3-Substituted and 3,4-Disubstituted 2-Pyrazoline-5-ones: A Facile Synthesis of 2-Alkynoic and 2,3-Alkadienoic (Allenic) Esters
Lead(IV) Acetate Oxidations of 3-Substituted and 3,4-Disubstituted 2-Pyrazoline-5-ones: A Facile Synthesis of 2-Alkynoic and 2,3-Alkadienoic (Allenic) Esters