Process for the preparation of triphendioxazine compounds

Details Process for the preparation of triphendioxazine compounds Process for the preparation of triphendioxazine compounds

1984-10-18

1985-07-30

Raymond, Richard L.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 76, 544 77, C07D49804

Patent

active

045323232

ABSTRACT:
A new process for the preparation of triphendioxazine compounds is provided.
The process is characterized in that a 2,5-diarylaminobenzoquinone compound is treated with oleum in the presence of iodine or an inorganic iodine compound.

REFERENCES:
patent: 3996221 (1976-12-01), Long et al.
patent: 4400504 (1983-08-01), Harms et al.

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