FIELD: organic chemistry. SUBSTANCE: product - 1-(2,4,6- trichlorophenyl) -3- [2-chloro -5 -(octadecenyl succineimi - do) -anilino] -4- (1- decyl -3,5- dimethylpyrazole -4-ylazo)- pyrazol - ine -5-one of the formula (image), empirical formula is БФ С52H72N8Cl4O3, m. p. is 90-92 C, yield is 40% . Reagent 1: 1-decyl-3,5-dimethyl-4-aminopyrazole. Reagent 2: NaNO2. Reaction conditions: in water in the presence of HCl at 0-2 C. Reagent 3: 1-(2,4,6-trichlorophenyl)-3-[2-chloro-5-octadecenylsuccineimi- do)-phenylamino]-pyrazoline-5-one. Reaction conditions: in pyridine, at 10-15 C. Product is used in negative photographic materials. EFFECT: improved method of synthesis. 2 tbl
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1-(2,4,6-TRICHLOROPHENYL)-3-[3-(2,4-DI-TERT-AMYLPHENOXYACETYLAMIN- -O) BENZOYLAMINO]-4-(1-DECYL-3,5-DIMETHYLPYRAZOL-4-YL-AZO)PYRAZOLINE -5-ON AS A PURPLE MASKING COMPONENT FOR GREEN-SENSITIVE LAYER OF NEGATIVE COLOR PHOTOGRAPHIC MATERIALS | 0 |
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Authors
Dates
1994-12-15—Published
1991-06-28—Filed