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Title:
METHOD FOR PRODUCING GEMINAL DIFLUORO COMPOUND
Document Type and Number:
WIPO Patent Application WO/2013/018465
Kind Code:
A1
Abstract:
This method for producing a geminal difluoro compound comprises a step wherein a fluorine-containing enol sulfate ester is reacted with a fluorination agent (such as hydrogen fluoride or "a salt or complex composed of an organic base and hydrogen fluoride"). This production method is an extremely useful method for producing a geminal difluoro compound, said method resolving problems of prior art all at one time, since the starting material substrate thereof is easily available, the production process thereof is easily carried out with high yield.

Inventors:
ISHII AKIHIRO
YAMAZAKI TAKAKO
Application Number:
PCT/JP2012/066203
Publication Date:
February 07, 2013
Filing Date:
June 26, 2012
Export Citation:
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Assignee:
CENTRAL GLASS CO LTD (JP)
ISHII AKIHIRO
YAMAZAKI TAKAKO
International Classes:
C07C17/093; C07C19/08; C07C23/10; C07C67/307; C07C69/75; C07B61/00; C07C303/30
Domestic Patent References:
WO2002060853A12002-08-08
Foreign References:
JPH01199922A1989-08-11
JPS6354331A1988-03-08
Other References:
MARTINEZ ET AL.: "A facile conversion of aliphatic aldehydes to 1,1-difluoroalkanes", TETRAHEDRON LETTRES, vol. 33, 1992, pages 7787 - 7788
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
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Claims: