Process for preparing 3,3-thiobis (2-methoxy-1-azabenzanthrone

Details Process for preparing 3,3-thiobis (2-methoxy-1-azabenzanthrone Process for preparing 3,3-thiobis (2-methoxy-1-azabenzanthrone

1974-08-21

1976-03-09

Gallagher, Richard J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D22118

Patent

active

039431363

ABSTRACT:
A new process for preparing 3,3 - thio - bis[2-Methoxy-1-azabenzanthrone], a useful intermediate in the synthesis of dyestuffs, is disclosed. The process involves reacting 2-methoxy-1-azabenzanthrone with sulfur chlorides in suspension or solution in an inert solvent under heating, and recovering the reaction product from the reaction mass, e.g., by filtering.

REFERENCES:
patent: 3242184 (1966-03-01), Moser et al.
patent: 3678053 (1972-07-01), Boffa et al.

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