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:
Jan. 10, 1978
Filed:
May. 03, 1976
Applicant:
Inventors:
Urs Oskar Hengartner, Roseland, NJ (US);
Pius Anton Wehrli, North Caldwell, NJ (US);
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603407 ; 260338 ; 2603 / ;
Abstract
An improved process for the preparation of 6,6-alkylenedioxyalkan-2-ones starting from alkyl vinyl ketones and alkyl acetoacetates is disclosed. The 6,6-alkylenedioxyalkan-2-ones are useful as intermediates in the total synthesis of therapeutically valuable steroids.
Hengartner, Urs. (1978). Intermediate in the preparation of 6,6-alkylenedioxyalkan-2-ones (U.S. Patent No. 4067885). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4067885
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile