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:
Feb. 06, 1979
Filed:
Jul. 27, 1977
Applicant:
Inventors:
Ryuzo Nishiyama, Takatsuki, JP;
Kanichi Fujikawa, Kyoto, JP;
Isao Yokomichi, Kusatsu, JP;
Yasuhiro Tsujii, Kusatsu, JP;
Kuniaki Nagatani, Kusatsu, JP;
Shigeyuki Nishimura, Shiga, JP;
Assignee:
Ishihara Sangyo Kaisha Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260581 ;
Abstract
3,5-Dichloroaniline is advantageously produced by reacting 1-bromo-2,4-dichlorobenzene with a metal amide in liquid ammonia at a molar ratio of 1-bromo-2,4-dichlorobenzene to the metal amide of 1 : 2 to 7. The 3,5-dichloroaniline is useful as an intermediate for various agricultural chemicals, dyes and medicines.