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:
Aug. 07, 2001
Filed:
Apr. 15, 1998
Applicant:
Inventors:
Toshio Hozumi, Fukushima, JP;
Takayuki Tanonaka, Fukushima, JP;
Hitoshi Takahashi, Fukushima, JP;
Hidenori Moe, Fukushima, JP;
Masaaki Hiruta, Fukushima, JP;
Tadahito Kasami, Fukushima, JP;
Assignee:
Kureha Kagaku Kogyo K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 2/200 ;
U.S. Cl.
CPC ...
C07C 2/200 ;
Abstract
This invention relates to an improved process for producing 2,6-dichloro-3,5-di(secondary or tertiary alkyl)toluene represented by the following formula (I). The process comprises chlorinating 3,5-di(secondary and tertiary alkyl)toluene represented by the following formula (II) by reacting with a chlorinating agent in the presence of a Lewis acid together with an aromatic sulfur compound represented by the formula (III) as a promoter: