Silica Gel Catalyzed Conversion of Dimethyl 2-(5-Bromo-2-hydroxyphenyl)-3-(triphenylphosphoranylidene)butanedioate to Methyl 6-Bromo-2-oxo-2H-chromene-4-carboxylate in Solvent-Free Conditions

Author: Ramazani Ali   Souldozi Ali  

Publisher: Taylor & Francis Ltd

ISSN: 1042-6507

Source: Phosphorus, Sulfur, and Silicon and the Related Elements, Vol.178, Iss.12, 2003-12, pp. : 2663-2666

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