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:
Mar. 27, 1984
Filed:
Mar. 04, 1977
Applicant:
Inventors:
Mitsuru Kondo, Kawanishi, JP;
Kiyoshi Yasui, Amagasaki, JP;
Makoto Miyake, Nishinomiya, JP;
Hiroshi Iwasaki, Kawanishi, JP;
Tetsuo Shiraishi, Nishinomiya, JP;
Assignee:
Kanzaki Paper Manufacturing Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
548469 ; 548484 ; 548485 ; 548483 ; 549308 ; 549309 ; 549310 ;
Abstract
A process is described for preparing triarylmethane derivatives of a high purity in an extremely high yield from 3-phenylphthalide derivatives and aniline derivatives or indole derivatives with Friedel-Crafts type catalyst or Friedel-Crafts type catalyst and an oxidizing agent.