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:
Sep. 15, 1981
Filed:
May. 23, 1980
Applicant:
Inventors:
Assignee:
Ihara Chemical Industry Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
570209 ; 570210 ; 252415 ;
Abstract
p-Chloroalkylbenzene is selectively produced by chlorinating an alkylbenzene in the presence of a phenoxthine compound having the formula ##STR1## wherein X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are the same or different and respectively represent hydrogen atom; an electron attractive group or an electron donative group and a Lewis acid or its precursor as a catalyst. The process for producing a p-chloroalkylbenzene can be repeatedly carried out by separating the resulting a p-chloroalkylbenzene and adding a hydrogen halide to the residual mixture containing the catalyst to activate the catalyst and chlorinating a newly added alkylbenzene.