Processes for preparing thioxanthone and derivatives thereof

Details Processes for preparing thioxanthone and derivatives thereof Processes for preparing thioxanthone and derivatives thereof

1997-08-25

1999-05-25

Lambkin, Deborah C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D33508

Patent

active

059070463

ABSTRACT:
A process for preparing thioxanthone and derivatives thereof is disclosed. In the process, an aromatic compound, such as cumene, is reacted with thiosalicylic acid (TSA) or dithiosalicylic acid (DTSA) in the presence of sulfuric acid. The reaction mixture, which includes thioxanthone or a derivative thereof, is thereafter distilled under reduced pressure to recover the thioxanthone compound.

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