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. 19, 2011
Filed:
Nov. 06, 2007
Tetsu Yamakawa, Nishitokyo, JP;
Kyoko Yamamoto, Yokohama, JP;
Daisuke Uraguchi, Nagoya, JP;
Kenji Tokuhisa, Shunan, JP;
Tetsu Yamakawa, Nishitokyo, JP;
Kyoko Yamamoto, Yokohama, JP;
Daisuke Uraguchi, Nagoya, JP;
Kenji Tokuhisa, Shunan, JP;
Sagami Chemical Research Center, Kanagawa, JP;
Tosoh F-Tech, Inc., Yamaguchi, JP;
Abstract
Provided is a reaction reagent for trifluoromethylation with high general versatility and good efficiency. The reaction reagent for trifluoromethylation contains an iron compound, trifluoromethyl iodide, a sulfoxide and a peroxide, and may further contain an acid. The iron compound is, for example, iron(II) sulfate, ammonium iron(II) sulfate, iron(II) tetrafluoroborate, ferrocene, bis(η-pentamethylcyclopentadienyl)iron or an iron powder; the sulfoxide is, for example, dimethyl sulfoxide; the peroxide is, for example, hydrogen peroxide or hydrogen peroxide-urea composite; and the acid is, for example, sulfuric acid, tetrafluoroboric acid or trifluoromethanesulfonic acid.