Ketosultams

Details Ketosultams Ketosultams

1986-02-20

1987-11-24

Ford, John M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D27902

Patent

active

047090260

ABSTRACT:
Method and composition for a ketosultam of the general formula ##STR1## in which R.sub.1 and R.sub.2 are identical or different and each denote hydrogen, (C.sub.1 to C.sub.8)-alkyl, which is optionally substituted by one or several halogen atoms, hydroxy groups, cyano groups or (C.sub.1 to C.sub.4)-alkoxy groups, or phenyl, R.sub.3 denotes hydrogen or a (C.sub.1 to C.sub.4)-alkyl group or (C.sub.1 to C.sub.4)-alkoxy group, n is a number from 1 to 4, or R.sub.1, R.sub.2 and R.sub.3, together with the corresponding aminophenyl group, denote julolidinyl or N-(C.sub.1 to C.sub.3)-alkylcarbazol-3-yl. The compounds are used in the preparation of sensitizers and dyes.

REFERENCES:
patent: 4095983 (1978-06-01), Wolff et al.
patent: 4448988 (1984-05-01), Guenther
"Handbook of Chemistry and Physics"--The Chemical Rubber Co., (1973-1974), 54th Edition, pp. C-352 and C-582.
Bender et al., "Liebigs Annalen der Chemie", (1985), vol. 1985--No. 3--Mar., pp. 579-588.

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