Process for producing fluorinated polyvalent carbonyl compound

Details Process for producing fluorinated polyvalent carbonyl compound Process for producing fluorinated polyvalent carbonyl compound

2006-05-30

2006-05-30

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C568S490000, C560S226000

Reexamination Certificate

active

07053238

ABSTRACT:
A fluorinated polyvalent carbonyl compound is produced by an economically advantageous method from inexpensive materials without requiring a complicated synthetic process step. Namely, the present invention comprises reacting a polyvalent alcohol having at least two kinds of alcohol skeletons selected among a primary alcohol, a secondary alcohol and a tertiary alcohol, with an acid halide to obtain a polyvalent ester compound, fluorinating it in a liquid phase to obtain a perfluorinated polyvalent ester compound, and cleaving the ester bonds derived from primary and secondary alcohols in the perfluoropolyvalent ester compound to obtain a fluorinated polyvalent carbonyl compound.

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Koichi Murata, et al., “The Thermal Decomposition of Perfluoroesters”, J. Am. Chem. Soc., vol. 120, No. 28, XP-002929013, 1998, pp. 7117-7118.

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