A Green and Regioselsctive Synthesis of Xanthone and Thioxanthone Derivatives in the Presence of Heteropoly Acid Under Microwave Irradiation
Mohammad A. Nasseri, Somayyeh Alizadeh, Batol Zakerinasb and Alireza Salimi Beni
Pages 338-344 (7)
One-pot preparation of a variety of pharmacologically pertinent xanthone heterocycles has efficiently been
achieved from their respective phenol compounds and salicylic acid/ thiosalicylic acid in the presence of the catalytic
amount of heteropoly acid. Most of the reactions showed high regioselectivity and produced xanthones/ thioxanthones in
good yields under microwave irradiation.
Xanthone, heteropoly acid, thioxanthone, green chemistry, salicylic acid, thiosalicylic acid.
Department of Chemistry, College of Sciences, University of Birjand, Birjand 97175-615, Iran.