Difluorocarbene From Fluoroform for Preparation of Difluoromethyoxyarenes, Difluorothiomethoxyarenes and Heteroarenes
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United States of America Patent
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Issued Date -
Dec 10, 2015
app pub date -
Jan 15, 2014
filing date -
Jan 15, 2013
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Abstract
A method for the transformation of hydroxyarenes, hydroxyheteroarenes, thiohydroxyarenes or thiohydroxyheteroarenes involves reaction with fluoroform in the presence of base comprising solution to yield a difluoromethoxyarene, diflurothiomethoxyheteroarene, or diflurothiomethoxyheteroarene. The transformation can be carried out at ambient room pressure or at elevated pressures. The transformation can be carried out at temperatures of 0 to 70° C.
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