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:
Jul. 12, 1983
Filed:
Nov. 12, 1981
Applicant:
Inventors:
Peter Tonne, Neustadt, DE;
Hagen Jaedicke, Ludwigshafen, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ;
U.S. Cl.
CPC ...
546153 ; 2605 / ; 260401 ; 260402 ; 2605 / ; 2605 / ; 546155 ; 546157 ; 546294 ; 560 10 ; 560 12 ; 560 13 ; 560 14 ; 560139 ; 560142 ; 562427 ; 562429 ; 562430 ;
Abstract
A process for the preparation of aromatic sulfohalides by reacting an aqueous solution, containing a hydrogen halide, of an aromatic diazonium halide with sulfur dioxide, wherein