Silica-zinc chloride (SiO2-ZnCl2) catalyzed Michael addition reaction of active methylene compounds to β-nitrostyrenes: Synthesis of functionalized pyrazole derivatives
V. Krishnan, Santha Kumari Merugu, V. K. Reddy, H. Bollikolla
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引用次数: 0
Abstract
Under solvent-free conditions, a simple and efficient procedure has been developed for the Michael addition reaction of active methylene compounds to β-nitrostyrenes. The resulting Michael adducts are efficiently converted into functionalized pyrazole derivatives with hydrazine hydrate in excellent yields. All the compounds were well characterized by spectroscopic techniques.
期刊介绍:
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