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:
Sep. 01, 1981
Filed:
Jun. 16, 1980
Applicant:
Inventor:
Zdenek Mazour, Lausen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
260985 ;
Abstract
Preparation of O,O-dialkylthionophosphoric acid chlorides of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are each an alkyl group having 1-6 carbon atoms, by reacting a dialkyl phosphite-chloride of the formula ##STR2## with sulfur in an inert solvent in the presence of a catalytic amount of titanium tetrachloride. The O,O-dialkylthionophosphoric acid chlorides of the above formula are valuable intermediates for the preparation of insecticidal active compounds.
Mazour, Zdenek. (1981). Process for the preparation of o,o-dialkylthionophosphoric acid chlorides (U.S. Patent No. 4287136). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4287136
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile