The synthesis and nucleophilic substitution of haloxanthones

Acylation reaction of m‐cresol with 2,6‐dihalobenzoic acid in the presence of methansulfonic acid and subsequently, cyclization of the obtained o‐hydroxybenzophenones with K2CO3/dimethyl formamide, afforded haloxanthones 4 and 5 in high yields. Aromatic nucleophilic substitution of the resulted halo...

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Bibliographic Details
Published in:Journal of heterocyclic chemistry 2001-05, Vol.38 (3), p.617-622
Main Authors: Sharghi, Hashem, Tamaddon, Fatemeh
Format: Article
Language:English
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Summary:Acylation reaction of m‐cresol with 2,6‐dihalobenzoic acid in the presence of methansulfonic acid and subsequently, cyclization of the obtained o‐hydroxybenzophenones with K2CO3/dimethyl formamide, afforded haloxanthones 4 and 5 in high yields. Aromatic nucleophilic substitution of the resulted haloxanthones with O‐, N‐ and S‐nucleophiles are studied in a comparative manner, and various new O‐, N‐ and S‐substituted xanthones have obtained.
ISSN:0022-152X
1943-5193
DOI:10.1002/jhet.5570380311