Process for the preparation of indenonecarboxylic acids

Details Process for the preparation of indenonecarboxylic acids Process for the preparation of indenonecarboxylic acids

1981-02-09

1982-04-06

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

560 51, 562459, C07C 5981, C07C 6238, C07C 5108, C07C 69757

Patent

active

043237010

ABSTRACT:
The invention relates to a process for the preparation of halogenoindenonecarboxylic acids of the formula ##STR1## in which R.sup.3 is preferably chlorine and R, R.sup.1 and R.sup.2 are, for example, H or -CH.sub.3. If these acids are novel, the corresponding substances are claimed. The invention also relates to corresponding esters of these acids, which contain reactive end groups. The compounds are suitable for the preparation of light-sensitive polymers.

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patent: 4107174 (1978-08-01), Baumann et al.
T. Zincke et al, Ann. 283, 341 (1894).
R. E. Lutz, J. Am. Chem. Soc. 52, 3404 (1930).
G. Roberge et al, Syn. Comm. 9(2), 129 (1979).

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