Pyrazole containing methine compounds

Details Pyrazole containing methine compounds Pyrazole containing methine compounds

1990-09-12

1992-08-04

Ramsuer, Robert W.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D40306

Patent

active

051360454

ABSTRACT:
A methine compound represented by the following formula and an agent containing the same for coloring resins such as polystyrene, ABS. ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group or a lower carboxylic ester group; R.sup.2 is a lower alkyl group, a lower carboxylic amide group or a lower carboxylic ester group; and X is --SO.sub.2 NR.sup.3 R.sup.4, --SO.sub.2 NCHNR.sup.5 R.sup.6 or --SO.sub.2 R.sup.7, where R.sup.3 and R.sup.4 each is a hydrogen atom, a lower alkyl group or a phenyl group, R.sup.5 and R.sup.6 each is a lower alkyl group, and R.sup.7 is a lower alkyl group or a hydroxyethyl group.

REFERENCES:
patent: 2526632 (1950-10-01), Brooker et al.
patent: 2766233 (1956-10-01), Kartinos et al.
patent: 2840443 (1958-06-01), Smith
patent: 3401404 (1968-09-01), Seidel et al.
Chemical Abstract No. 17759d.
Chemical Abstract No. 112480d.

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