The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
Apr. 25, 2019
Daikin Industries, Ltd., Osaka, JP;
Tatsuya Ohtsuka, Osaka, JP;
Yoshichika Kuroki, Osaka, JP;
Atsushi Shirai, Osaka, JP;
Moe Hosokawa, Osaka, JP;
Yosuke Kishikawa, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
The problem to be solved by the present invention is to provide a novel method for producing a difluoromethylene compound, in particular, a simple method for producing a difluoromethylene compound. This problem is solved by a method for producing a difluoromethylene compound (I) containing at least one —CF— moiety, the method comprising step A of allowing IFand a disulfide compound (III) of the formula: R—S—S—R(wherein R, in each occurrence, independently represents aryl optionally having at least one substituent or alkyl optionally having at least one substituent) to act on a carbonyl compound (II) containing at least one —C(O)— moiety.