Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-01-27
1977-04-12
Rizzo, Nicholas S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2602471L, 26029357, C07D27780
Patent
active
040175065
ABSTRACT:
A process for the preparation of 2-benzothiazolesulphinamides of the general formula: ##STR1## in which R and R' represent alkyl groups containing 1 to 6 carbon atoms, cyanoethyl or cycloalkyl groups containing 5 to 7 carbon atoms or -NRR' is piperidino, hexamethyleneimino, morpholino, or 2,6-dimethylmorpholino which comprises oxidizing with an alkali metal hypochlorite, at a temperature below 30.degree. C. an aqueous suspension of a sulphenamide of the formula: ##STR2## in which R and R' have the same significance as in formula (I) in the presence of a sufficient amount of an alkaline agent selected from sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate and mixtures thereof so as to maintain the pH at 9 to 10, and as novel compounds useful as vulcanization accelerators for natural or synthetic rubber 2-piperidino-sulphinyl-, 2-N,N-bis(-62 -cyanoethyl)aminosulphinyl-, 2',6'-dimethyl-2-morpholinosulphinyl- and 2-N-hexamethyleneiminosulphinyl-benzothiazoles.
REFERENCES:
patent: 2957002 (1960-10-01), Korman
patent: 3454590 (1969-07-01), Meale et al.
Alicot Michel Jean Camille
Mingasson Georges Raymond Henry
Montu Michel Louis Jules
Rizzo Nicholas S.
Springer David B.
Ugine Kuhlmann
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