A New Convenient Method For Preparation of Condensed Aromatic and Heterocyclic Thiolactones

Daniel Végh Department of Organic Chemistry, Slovak Technical University, 812 37, Bratislava, Czechoslovakia

Jean Morel Universite du Havre, Laboratoire de Chimie, 760 58, Le Havre, France

Bernard Decroix Universite du Havre, Laboratoire de Chimie, 760 58, Le Havre, France

Peter Zálupský Department of Organic Chemistry, Slovak Technical University, 812 37, Bratislava, Czechoslovakia

Abstract

Cyclocondensation of the benzylic-type thiols (Ib-VIb) in ortho position on aromatic and heteroaromatic carboxylic acids to form the corresponding thiolactones (Ic-VIc) can be effected with polyphosphate esters (PPE) in organic solvents in 75–90% yields.

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A New Convenient Method For Preparation of Condensed Aromatic and Heterocyclic Thiolactones

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A New Convenient Method For Preparation of Condensed Aromatic and Heterocyclic Thiolactones

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