Process for the manufacture of thianthrene

Details Process for the manufacture of thianthrene Process for the manufacture of thianthrene

1974-11-05

1976-12-14

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D33908

Patent

active

039975606

ABSTRACT:
Thianthrene is prepared by adding sulfur monochloride to an excess of benzene in the presence of aluminum chloride, and reacting at a temperature of 60.degree. to 80.degree. C to form thianthrene as an insoluble thianthrene-aluminum chloride complex; separating the complex by filtration, slurrying the complex in an inert organic liquid; treating the slurry with a Lewis base, such as ammonia to free the thianthrene from the complex and recovering a relatively high purity thianthrene product.

REFERENCES:
shirley, Preparation of Organic Intermediates (N.Y. Wiley 1951) p. 276.
Gilman et al., JACS 78: 2163-2165 (1956).
Cohen et al., J. Chem. Soc. 75: 887-893 (1899).

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