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ChemInform Abstract: Fluoroboric Acid Adsorbed on Silica-Gel-Catalyzed Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthene Derivatives.

✍ Scribed by Yu-Heng Liu; Xu-Ye Tao; Li-Qin Lei; Zhan-Hui Zhang

Publisher: John Wiley and Sons
Year: 2009
Weight: 20 KB
Volume: 40
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.200931136

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A mild, efficient, and environment friendly method has been developed for the synthesis of 14-alkyl or aryl-14H-dibenzo [a, j]xanthenes by condensation of 2-naphthol and aldehydes in the presence of a catalytic amount of indium(III) triflate (2 mol%) in water at 100 • C. Different types of aromatic