Preparation of chlorinated violanthrones or isoviolanthrones

Organic compounds -- part of the class 532-570 series – Organic compounds – Polycyclo ring system containing anthracene configured ring...

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C07C 5036

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active

055547745

ABSTRACT:
Chlorinated violanthrones or isoviolanthrones are prepared by reacting violanthrone or isoviolanthrone with chlorine in the presence of a diluent, using aliphatic carboxylic acids and/or aliphatic halo carboxylic acids as diluent for this purpose.

REFERENCES:
patent: 837775 (1906-12-01), Bally
patent: 1842694 (1932-01-01), Shaw et al.

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