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Synthesis 1986; 1986(12): 1074-1076
DOI: 10.1055/s-1986-31882
DOI: 10.1055/s-1986-31882
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Useful Syntheses of 2-Substituted 1,3-Benzoxathiolium Tetrafluoroborates from Carboxylic Acids, Anhydrides, Esters and Trihalomethyl Compounds
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Publication History
Publication Date:
12 September 2002 (online)
2-Substituted 1,3-benzoxathiolium tetrafluoroborates are obtained in good to high yields by reaction of o-mercaptophenol with aliphatic or aromatic carboxylic acids,esters, anhydrides and trihalomethyl compounds utilizing phosphorus oxychloride, tetrafluoroboric acid-ether or boron trifluoride-ether complex as condensing agents. 1H-NMR and 13C-NMR spectra are reported.