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:
Jun. 09, 1992
Filed:
Jun. 13, 1990
Applicant:
Inventors:
Zonia G Cutie, Midland, MI (US);
Marc E Halpern, Cherry Hill, NJ (US);
Assignee:
DowElanco, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C07F / ; C07F / ; C07F / ;
U.S. Cl.
CPC ...
546 25 ; 544243 ; 544337 ; 558 98 ; 558100 ;
Abstract
The present invention is directed to the preparation of certain phosphorothioates and phosphonoates by means of a process which employs a three-phase system for the reaction of an alkali metal or alkaline earth metal phenate, pyridinate or pyrimidinate with a phosphorochloridothioate or phosphorochloridate under alkaline conditions and in the presence of tertiary amine and quarternary ammonium salt co-catalyst, but in the absence of both a hydrocarbon or chlorinated hydrocarbon solvent and a surfactant.