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:
May. 15, 1984
Filed:
Aug. 13, 1982
Applicant:
Inventor:
Wolfgang Preuss, Monheim, DE;
Assignee:
Henkel KGaA, Duesseldorf, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2603971 ; 2603973 ; 26039745 ;
Abstract
New .DELTA.4-steroid compounds optionally containing a further double bond in the 1-position and an 11-oxygen function and corresponding to general formula I below: ##STR1## in which X represents halogen, particularly chlorine or bromine, or NH.sub.2 and Y is a hydroxyl group, or together with the C-atom substituted by Y, represents a carbonyl group, are obtained from the associated steroid-20-carboxylic acids by reaction with a halogenating agent in substantially stoichiometric quantities at temperatures not exceeding 15.degree. C., after which the steroid-20-carboxylic acid halide formed is, if desired, reacted with ammonia or with a compound which yields ammonia.