3-[3',4'-Dichloro-6'-alkyl-phenyl]-.DELTA..sup.2 -pyrazoline der

Details 3-[3',4'-Dichloro-6'-alkyl-phenyl]-.DELTA..sup.2 -pyrazoline der 3-[3',4'-Dichloro-6'-alkyl-phenyl]-.DELTA..sup.2 -pyrazoline der

1974-06-26

1976-05-18

Moyer, Donald B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

8 1W, 25230127, C07D23106, D06L 312

Patent

active

039578151

ABSTRACT:
Novel pyrazolines are obtained by condensation of substituted propiophenones or vinyl-phenyl-ketones with substituted phenyl hydrazines. The products are useful as optical brighteners of a great variety of the shade of their fluorescence and of an improved fastness to light.

REFERENCES:
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patent: 3133080 (1964-05-01), Sarkar et al.
patent: 3141879 (1964-07-01), Hausermann et al.
patent: 3357988 (1967-12-01), Hausermann et al.
patent: 3378389 (1968-04-01), Schellhammer et al.
patent: 3753978 (1973-08-01), Adelsberger et al.

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