Tetrahedron letters

Microwave assisted synthesis of heterocyclic fused quinones in dry media

…, P De la Cruz, P De Miguel, E Diez-Barra, A De la Hoz…

Index: Acosta, A.; Cruz, P. de la; Miguel, P. De; Diez-Barra, E.; Hoz, A. de la; et al. Tetrahedron Letters, 1995 , vol. 36, # 12 p. 2165 - 2168

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Citation Number: 31

Abstract

Microwave assisted cyclization of several 2-thenoylbenzoic acids 2 catalysed with clays in dry media is studied. Some clays were tested and Montmorillonite K-10, free of quarz and feldspar, was shown to be an effective catalyst for their easy conversion into the corresponding heterocyclic fused quinone in good yields. A specific effect of microwave irradiation accelerating the reaction with respect to conventional heating in the same ...