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Patent Searching and Data


Title:
PRODUCTION OF 4-HALO-1-NAPHTHOL COMPOUND
Document Type and Number:
Japanese Patent JPH08310999
Kind Code:
A
Abstract:

PURPOSE: To easily obtain at a low cost in high purity and yield the subject compound useful as e.g. a naphthol coupler to be used for silver halide color photograph photosensitive materials, by using a specific hydantoin.

CONSTITUTION: This compound of formula I (R1 is an alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl or arylsulfonyl; R2 is an alkylamino, arylamino, aryloxy or hydroxyl; (n) is 0 or 1; X1 is a halogen) is obtained by halogenating a compound of formula II with a 1,3- dihalo-5,5-dimethylhydantoin (e.g. 1,3-dichloro-5,5-dimethylhydantoin) in an organic solvent other than a halogen-based one (e.g. toluene, ethyl acetate) at e.g. 15-30°C.


Inventors:
YAMAKAWA KAZUYOSHI
SATO TADAHISA
Application Number:
JP30379895A
Publication Date:
November 26, 1996
Filing Date:
October 27, 1995
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C7/34; C07C69/94; C07C231/12; C07C235/66; C07C237/42; C07C311/08; C07C311/21; (IPC1-7): C07C69/94; C07C231/12; C07C235/66; C07C237/42; C07C311/08; C07C311/21; G03C7/34
Attorney, Agent or Firm:
Toshizo Iida