Tetrahedron letters

Novel application of the palladium-catalyzed N-arylation of hydrazones to a versatile new synthesis of pyrazoles

N Haddad, J Baron

Index: Haddad, Nizar; Baron, James Tetrahedron Letters, 2002 , vol. 43, # 12 p. 2171 - 2173

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Citation Number: 47

Abstract

Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A versatile synthesis of pyrazoles from aryl benzophenone hydrazones was demonstrated with a variety of 1,3-bifunctional substrates under acidic conditions. The obtained regioselectivity is consistent with transhydrazonation followed by subsequent cyclization. ... One-pot synthesis of ...