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2 024 518

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IPC

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Application

4952099/04, 1991-06-28

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Actual filing date

1991-06-28

(45)

Published

1994-12-15

(72)

Inventor

Al'Perovich M.A.Sazonov S.K.Averbukh M.Z.Mikaehljan R.G.Ljubich M.S.Uspenskaja A.Ju.Veniaminov S.A.

(73)

Holder

Arendnaja Organizatsija Nauchno-Issledovatel'Skij I Proektnyj Institut Khimiko-Fotograficheskoj Promyshlennosti

METHOD OF SYNTHESIS OF 1- (2,4,6 -TRICHLOROPHENYL) -3- [2- CHLORO -5 -(OCTADECENYLSUCCINEIMI- DO)-ANILINO] -4- (1- DECYL- 3,5- DIMETHYLPYRAZOLE -4-YLAZO)- PYRAZOL - INE -5- ONE Russian patent published in 1994 - IPC

Abstract RU 2024518 C1

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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RU 2 024 518 C1

Authors

Al'Perovich M.A.

Sazonov S.K.

Averbukh M.Z.

Mikaehljan R.G.

Ljubich M.S.

Uspenskaja A.Ju.

Veniaminov S.A.

Dates

1994-12-15—Published

1991-06-28—Filed