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:
Apr. 18, 1978
Filed:
Jan. 09, 1976
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
2605 / ; 2605 / ; 2605 / ; 2605706 ; 2605707 ; 2605 / ; 2605709 ; 260571 ; 260573 ; 260575 ; 260578 ;
Abstract
A method of preparing a meta-chloroaniline by contacting a substituted aniline containing a chlorine substituent at other than a meta position and a chlorine substituent at the meta position with hydrogen in solution in an acid medium in the presence of a noble metal catalyst at elevated temperature and pressure. The aniline reactant can contain organo substituents on the ring. The product which results is either a 3-chloroaniline or a 3,5-dichloroaniline which similarly can contain organo substituents on the ring.