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Synthesis 2004(17): 2900-2904
DOI: 10.1055/s-2004-831253
DOI: 10.1055/s-2004-831253
PAPER
© Georg Thieme Verlag Stuttgart · New York
A Novel and Efficient Method for the Synthesis of New Hydroxythioxanthone Derivatives
Further Information
Received
5 July 2004
Publication Date:
07 October 2004 (online)
Publication History
Publication Date:
07 October 2004 (online)

Abstract
We describe the synthesis of some new hydroxythioxanthones by treatment of thiosalicylic acid (TSA) with various substituted phenols in the presence of Al2O3-CH3SO3H (AMA). Most of the reactions show high regioselectivity and produce thioxanthones in good yields.
Keywords
thioxanthone - thiosalicylic acid - methansulfonic acid - alumina
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