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:
Apr. 11, 1978
Filed:
Feb. 04, 1977
Applicant:
Inventors:
Nobushige Itaya, Nishinomiya, JA;
Fumio Fujita, Ibaraki, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603436 ; 2605 / ; 560124 ; 560219 ;
Abstract
A method for producing a 3,3-dimethyl-4-(2,2-dihalogenovinyl)-4-hydroxybutyric-1,4-lactone of the formula, ##STR1## wherein X is a halogen atom, which comprises reacting a 1,1,1-trihalogeno-4-methyl-3-pentene-2-ol of the formula, ##STR2## wherein X is a halogen atom, or a 1,1,1-trihalogeno-4-methyl-4-pentene-2-ol of the formula, ##STR3## wherein X is a halogen atom, or the mixture of the both compounds with vinylidene chloride of the formula, ##STR4## IN SULFURIC ACID.
Itaya, Nobushige. (1978). Method for producing a .gamma.-lactone (U.S. Patent No. 4083855). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4083855
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile