Thioxanthonecarboxylic acids and thioxanthonecarboxylic acid der

Details Thioxanthonecarboxylic acids and thioxanthonecarboxylic acid der Thioxanthonecarboxylic acids and thioxanthonecarboxylic acid der

1981-04-28

1983-05-24

Raymond, Richard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260349, 544 79, 544130, 544132, 544141, 544145, 546187, 546202, C07D33516

Patent

active

043851827

ABSTRACT:
Novel thioxanthonecarboxylic acids and thioxanthonecarboxylic acid derivatives of the formula I ##STR1## in which Y is --COOH, --CO-halogen, --CN or a carboxylic acid ester, thioester or amide group and X, Z and W are as defined in the patent claim, are described. The compounds of the formula I in which Y is other than --CO--halogen are suitable as sensitizers for photo-crosslinkable polymers or as initiators for photo-polymerization of ethylenically unsaturated compounds or for photo-chemical crosslinking of polyolefins. The acid halides of the formula I are starting materials for the preparation of the corresponding nitriles and carboxylic acid esters, thioesters and amides.

REFERENCES:
patent: 3642997 (1972-02-01), Shen et al.
patent: 3904647 (1975-09-01), Pfister et al.
patent: 4348530 (1982-09-01), Kvita et al.

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