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. 05, 1982
Filed:
Jun. 06, 1980
Jean-Pierre Ledouble, Rosenau, FR;
Klaus Muller, Reinach, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
A process for the production of bis-[O-(1-alkylthioethylimino)-N-methylcarbamyl]-N,N-sulfides of the formula I ##STR1## wherein R is a straight-chain or branched alkyl group of 1 to 5 carbon atoms, by reacting a O-(1-alkylthioethylimino)-N-methylcarbamate of the formula ##STR2## wherein R is as defined above, in the presence of a base, with sulfur dichloride or sulfur monochloride in an inert solvent, which process comprises carrying out said reaction in the presence of 0.01 to 0.5 mole of a compound selected from the group consisting of N,N-dialkylformamides, each containing 1 to 4 carbon atoms in the alkyl moieties, N-methylpyrrolidone, dimethyl sulfoxide, phosphoric acid tris-N,N-dimethylamide and tetramethyl urea, per mole of O-(1-alkylthioethylimino)-N-methylcarbamate of the formula II. The bis-[O-(1-alkylthioethylimino)-N-methylcarbamyl]-N,N'-sulfides of the above formula possess insecticidal properties and are suitable in particular for controlling pests of cotton plants and bluebottles.