Thiuram polysulfide

Details Thiuram polysulfide Thiuram polysulfide

1985-05-09

1991-05-14

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Esters having the thiocarboxylate group, -cx-, wherein the...

C07C33300

Patent

active

050157523

ABSTRACT:
A process for the production of thiuram polysulfides substituted by aliphatic, araliphatic, cycloaliphatic aromatic and/or hydrocarbon radicals is disclosed. In this process, correspondingly substituted secondary amines are reacted with carbon disulfide and sulfur in a solvent at 0.degree. to 150.degree. C. in the presence of a tertiary amine, a metal-containing catalyst and oxygen or an oxygen-containing gas.
By virtue of its high purity, the product obtained by this process may be used directly, i.e., without preceeding purification, for its intended purpose, for examples as a vulcanization accelerator or sulfur donor.
This process is particularly desirable for the substantially quantitative yields and selectivities and also for its high economy arising from the reaction being carried out in a single stage without expensive auxiliaries and from the elimination of an additional purification step.

REFERENCES:
patent: 1681717 (1928-08-01), Whitby
patent: 1780545 (1930-11-01), Whitby
patent: 2251686 (1941-08-01), Musselman et al.
patent: 2414014 (1947-01-01), Cable et al.
patent: 3116329 (1963-12-01), Hayes
patent: 4144272 (1979-03-01), Bergomi et al.
patent: 4459424 (1984-07-01), Eisenhuth et al.
patent: 4468526 (1984-08-01), Eisenhuth et al.

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