Production of organic disulfides

Details Production of organic disulfides Production of organic disulfides

1995-06-06

1997-08-19

Ivy, C. Warren

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

Organic compounds

Sulfur containing

568 25, C07C32122, C07C32114, C07C32116

Patent

active

056590865

ABSTRACT:
A process which can be used for producing an organic disulfide is provided. The process comprises the steps of: (1) contacting a base and a mercaptan under an effective condition for forming a brine phase comprising the base and a basic salt of a mercaptan; (2) contacting the brine phase with a mercaptan and hydrogen peroxide under a condition sufficient to effect the formation of an aqueous phase and an organic phase; (3) separating the aqueous phase from the organic phase; (4) recovering the organic phase; and optionally, (5) removing a portion of water from the aqueous phase and thereafter repeating the steps of (2) to (5).

REFERENCES:
patent: 2024567 (1935-12-01), Clifford
patent: 2043949 (1936-06-01), Cramer
patent: 2979532 (1961-04-01), MacGregor
patent: 3275693 (1966-09-01), Bapseres
patent: 3994979 (1976-11-01), Warner
patent: 4288627 (1981-09-01), Kubicek
patent: 4868336 (1989-09-01), Presnall
patent: 5202494 (1993-04-01), Roberts et al.
The Chemistry of Organic Sulfur Compounds (ed. N. Kharasch and C. Y. Meyers), Chapt. 8, pp. 205-232 (1966).
Organic Chemistry of Bivalent Sulfur (ed. E. E. Reid), pp. 118-119 (1958).

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