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:
Nov. 27, 1979
Filed:
Feb. 22, 1977
Applicant:
Inventors:
Istvan Szekely, Szentendre, HU;
Istvan Tomoskozi, Budapest, HU;
Gabor Kovacs, Budapest, HU;
Vilmos Simonidesz, Budapest, HU;
Marianna Lovasz nee Gaspar, Budapest, HU;
Borbala nee Keresztes, Budapest, HU;
Julia nee Remport, Budapest, HU;
Istvan Stadler, Budapest, HU;
Zsuzsa nee Visky, Budapest, HU;
Csaba Szantay, Budapest, HU;
Assignee:
Chinoin Gyogyszer es Vegyeszeti Termekek, Budapest, HU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603 / ; 26034622 ;
Abstract
A process for the preparation of bicyclic enon compounds in which a lactone diol is selectively oxidized to obtain a hydroxy-aldehyde with one hydroxyl group and, without isolation, the hydroxy-aldehyde is reacted with a phosphorus compound. The reaction product can be acylated or silylated.