Journal
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
Volume 19, Issue 5, Pages 1053-1058Publisher
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532008000500034
Keywords
dibenzoxanthene; ferric hydrogensulfate; beta-naphthol; aldehyde; solvent-free
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Ferric hydrogensulfate as catalyst has been used for the one-pot preparation of aryl 14H-dibenzo[a,j]xanthene derivatives by cyclocondensation of beta-naphthol and substituted benzaldehydes under solvent-free and thermal conditions. This method has the advantages of high yields, a cleaner reaction, simple methodology, short reaction times, easy workup and greener conditions.
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