Coumarin derivatives

Details Coumarin derivatives Coumarin derivatives

1973-06-18

1976-06-29

Rush, Raymond V.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

8 1W, 25230127, 25230129, 2602471M, 2602472A, 2602472B, 26029358, 260310R, C07D40504, C07D40514, C07D41314

Patent

active

039667553

ABSTRACT:
The present invention relates to new coumarine derivatives in which coumarine residues substituted in 7-position or 5,6-benzo-coumarine residues are further substituted in 3-position by optionally further substituted 2-phenyl-triazol-4-yl 2- or 1-phenyl-pyrazol-4-yl.
The new compounds are useful optical brighteners for organic materials.

REFERENCES:
patent: 3014041 (1961-12-01), Hausermann et al.
patent: 3271412 (1966-09-01), Rawe et al.
patent: 3636004 (1972-01-01), Bode et al.
patent: 3686202 (1972-08-01), Kirchmayr et al.

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