Method of preparing 2,2'-dithiodianiline

Details Method of preparing 2,2'-dithiodianiline Method of preparing 2,2'-dithiodianiline

1977-08-19

1979-01-23

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260582, 260608, 260687R, 260705, C07C 8524, C07C 8526

Patent

active

041361180

ABSTRACT:
Method of preparing 2,2'-dithiodianiline by the steps of (A) obtaining an agitated mixture of a water solution of a salt of o-aminothiophenol and an unstable dispersion therein of a liquid hydrocarbon, (B) oxidizing said salt by the slow addition of a water soluble peroxide, (C) discontinuing the agitation to allow the formation of a sharply defined lower aqueous phase and upper hydrocarbon phase, (D) drawing off said lower aqueous phase and (E) distilling the hydrocarbon phase therefrom and recovering said 2,2'-dithiodianiline as a distilland.

REFERENCES:
patent: 1933217 (1933-10-01), Lantz
patent: 2028303 (1936-01-01), Turner
patent: 2385504 (1945-09-01), Goulding
patent: 2435508 (1948-02-01), Paul et al.

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