Process for the manufacture of substituted thianthrene based pro

Details Process for the manufacture of substituted thianthrene based pro Process for the manufacture of substituted thianthrene based pro

Filed on

1976-11-01

Date issued

1978-05-23

Examiner

Jaisle, Cecilia M.

Patent Class

Chemistry of carbon compounds

SubClass

Miscellaneous organic carbon compounds

SubSubClass

C-metal

Other Related Categories

C07D33908

Type

Patent

Status

active

Patent number

040910318

Description

ABSTRACT:
Thianthrene compounds are prepared by adding sulfur monochloride to an excess of a benzene compound in the presence of aluminum chloride, and reacting to form a thianthrene compound as an insoluble aluminum chloride complex; slurrying the complex in an inert organic liquid; treating the slurry with a Lewis base, such as ammonia to free the thianthrene compound from the complex.

REFERENCES:
patent: 3997560 (1976-12-01), Buckholtz et al.

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