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US 8,785,689 B2Granted
Method for purifying difluoroacetic acid chloride
AssigneeCentral Glass Company, Limited
InventorsNaoto Takada, Masamune Okamoto, Hideaki Imura
Life of this patent
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Abstract
A method for purifying difluoroacetic acid chloride, including the step of bringing a difluoroacetic acid chloride composition that contains at least difluoroacetic acid fluoride into contact with calcium chloride at a temperature enabling reaction thereof thereby converting difluoroacetic acid fluoride into difluoroacetic acid chloride.
Claims10
A method for purifying difluoroacetic acid chloride, comprising the step of:
- bringing a difluoroacetic acid chloride composition that contains at least difluoroacetic acid fluoride into contact with calcium chloride at a temperature enabling reaction thereof thereby converting difluoroacetic acid fluoride into difluoroacetic acid chloride.
A method for purifying difluoroacetic acid chloride, comprising the step of:
- reacting difluoroacetic acid fluoride with lithium chloride thereby producing a difluoroacetic acid chloride composition that contains at least difluoroacetic acid fluoride;
- and
- bringing the difluoroacetic acid chloride composition into contact with calcium chloride at a temperature enabling reaction thereof thereby converting difluoroacetic acid fluoride into difluoroacetic acid chloride.
Dependencies are inferred from the claim text.