Synthetic communications

α-Pyrazolyl-Alkylphosphonates. Part. II1: A simple and Efficient Synthesis of Diethyl 1-(pyrazol-4-yl)-alkylphosphonates

…, E About-Jaudet, N Collignon

Index: Fouque; About-Jaudet; Collignon Synthetic Communications, 1995 , vol. 25, # 21 p. 3443 - 3455

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Citation Number: 17

Abstract

Abstract Various diethyl β-functional γ-oxo alkylphosphonates (3) were conveniently prepared using two complementary inexpensive strategies, and were reacted with hydrazine, methylhydrazine or phenylhydrazine giving regioselectively new diethyl 1-