Process for preparing thioxanthone and derivatives thereof

Details Process for preparing thioxanthone and derivatives thereof Process for preparing thioxanthone and derivatives thereof

1997-08-25

1999-06-29

Lambkin, Deborah C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

522 53, 522348, 4302811, C08F 200, C08F 246, G03C 1725

Patent

active

059169842

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.

REFERENCES:
patent: 3904647 (1975-09-01), Pfister et al.
patent: 4012499 (1977-03-01), Hodson et al.
patent: 4101558 (1978-07-01), Vacek et al.
patent: 4264773 (1981-04-01), Pigerol et al.
patent: 4321118 (1982-03-01), Felder et al.
patent: 4450279 (1984-05-01), Shirosaki et al.
patent: 4661595 (1987-04-01), Avar
patent: 5177218 (1993-01-01), Fischer et al.
patent: 5414092 (1995-05-01), Green et al.
M.J. Davis et al.; The UV-curing behaviour of some photoinitiators and photoactivators; J. Oil Col. Chem. Assoc. 1978, 61, 256-63.
Dean; "Analytical Chemistry Handbook", pp. 2.116-2.117, section 2.48 (1995).
Chemical Abstracts, vol. 67 No. 21, Nov. 20, 1967, Columbus, OH, US; abstract No. 99976r, G.E. Ivanov et al.: "Preparation and properties of thioxanthen-9-ol" p. 9397; col. 1; XP002037812 see abstract & Zh. Org. Khim ., vol. 3, No. 6, 1967, pp. 1142-3.

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