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. 16, 1995
Filed:
Dec. 12, 1990
Applicant:
Inventor:
Louis Rebrovic, Cincinnati, OH (US);
Assignee:
Henkel Corporation, Ambler, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
549273 ; 549295 ; 549323 ;
Abstract
A convenient stereoselective process for the preparation of .alpha.-alkylidene-substituted-.gamma.-butyrolactones and .delta.-valerolactones is provided. The process involves reacting an .alpha.-acyl lactone, an aldehyde, and an alkali metal hydroxide in an inert diluent at an elevated temperature while removing water.
Quick Actions:
Rebrovic, Louis. (1995). Process for converting .alpha.-acyl-substituted lactones to (U.S. Patent No. 5416224). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5416224
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile