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:
May. 31, 2011
Filed:
Mar. 30, 2007
Tatsuya Sugimoto, Tokyo, JP;
Tatsuya Sugimoto, Tokyo, JP;
Zeon Corporation, Tokyo, JP;
Abstract
A process for producing a perfluoroalkyne compound includes an addition reaction step of adding Cl, Br, or Ito a compound shown by the formula (1) CHC≡CRto obtain a compound shown by the formula (2) CHCXCXR, a fluorination reaction step of reacting the compound shown by the formula (2) with fluorine gas to obtain a compound shown by the formula (3) CFCXCXR, and a dehalogenation reaction step of contacting the compound shown by the formula (3) with a metal or an organometallic compound to obtain a perfluoroalkyne compound shown by the formula (4) CFC≡CR. According to the present invention, a perfluoroalkyne compound can be produced at high productivity and high yield using starting raw materials which are environmentally friendly and industrially available. In the above formulas, Rrepresents a methyl group or an ethyl group, X represents Cl, Br, or I, and Rrepresents a trifluoromethyl group or a pentafluoroethyl group.