Preparative Organic Chemistry
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ChemInform Abstract: Unusual Reaction of Sulfur Tetrafluoride: Conversion of the Methyl Group into Difluoromethyl and Trifluoromethyl Groups.
First published: April 16, 1996
Abstract
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ChemInform Abstract
Reaction of dimethylfurandicarboxylic acid (I) with SF4 gives, besides the expected acid fluoride (II) and small amounts of 3,4-bis( trifluoromethyl)furan (III), the higher fluorinated compounds (IV) and (V) formed by the substitution of hydrogen atoms by fluorine in one of the methyl groups.
