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US 4,365,101 AGranted
Process for preparing benzotrifluoride and its derivatives
AssigneeDaikin Kogyo Co., Ltd.
InventorsTsuneo Nakagawa, Uji Hiramatsu, Toshihide Honda
Life of this patent
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Abstract
A process for preparing benzotrifluoride or derivatives thereof by contacting benzotrichloride or the corresponding derivative with hydrogen fluoride in a gaseous phase in the absence of any catalyst, the contact being carried out in the presence of chlorine at an elevated temperature so as to accelerate the reaction rate.
Claims6
A process for preparing benzotrifluoride which comprises contacting benzotrichloride with hydrogen fluoride in the absence of any catalyst in the gaseous phase and in the presence of chlorine at an elevated temperature.
Dependencies are inferred from the claim text.