3-Pyrozolyl-4-triazolyl compounds

Details 3-Pyrozolyl-4-triazolyl compounds 3-Pyrozolyl-4-triazolyl compounds

1974-02-19

1979-03-13

Rollins, Alton D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260308B, 542428, 542431, 542458, 25230129, C07D40514, C09K 102

Patent

active

041442431

ABSTRACT:
Coumarine compounds of the formula ##STR1## IN WHICH R.sub.1 and R.sub.2 denote hydrogen, alkyl, cycloalkyl, aralkyl, aryl, nitrile, carboxyl, carboxylic acid ester or carboxylic acid amide groups, or together form a nonaromatic 5-membered or 6-membered ring system, R.sub.3 represents hydrogen, or alkyl or aryl radicals and Hal represents bromine or preferably chlorine as well as their production and use as optical brighteners.

REFERENCES:
patent: 3663560 (1972-05-01), Schellhammer et al.
patent: 3784570 (1974-01-01), Schellhammer
patent: 3839352 (1974-10-01), Kirchmayr et al.

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