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:
Jan. 19, 1988
Filed:
Aug. 28, 1985
Applicant:
Inventors:
Jean-Michel Brochard, Alfortville, FR;
Stanley T Gough, Essex, GB;
Assignee:
Rhone-Poulenc Agrochimie, Lyons, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558098 ;
Abstract
Process for preparing an O-alkyl S-(alpha-branched alkyl) alkylphosphonothioate of formula: ##STR1## with R and R.sub.1 =alkyl having 1 to 8 C. R.sub.2 =alpha-branched alkyl having 3 to 8 C. It consists in reacting an O-(alkyl)alkylphosphonic acid halide with an alkyl mercaptan HSR.sub.2 in an organic medium, in the presence of an acceptor for acid and a smaller amount of an auxiliary base. Process useful for preparing insecticidal and nematocidal products.