PRODUCTION OF AZO DYE COMPOUND

Japanese Patent JP3699760

B2

PROBLEM TO BE SOLVED: To obtain a compound in a mild condition and in high yield by using a safe hydrazine and an azo derivative compound as raw materials.
SOLUTION: This compound is obtained by carrying out a coupling reaction of a compound of formula I (Z1 is an acyl, a carbamoyl or an aryloxycarbonyl; X1-X5 are each H or a substituent group with the proviso that the sum of the Hammett substituent constant values σp of X1, X3 and X5 plus the Hammett substituent constant values σm of X2 and X4 are within a range of ≥0.80 and ≤3.80) or a compound of formula II (Z2 is same as Z1; R3 is a heterocyclic group) to a coupling component in the presence of an oxidant. For example, an azo dye compound of formula V is produced from the compound of formula III and the compound of formula IV as a coupler, dissolving the reaction product in acetonitrile together with N-ethyl-diisopropylamine and adding argenic oxide to carry out the reaction.

WO/1993/005026	PEPTIDE ISOTERS CONTAINING A HETEROCYCLE AS H.I.V. INHIBITORS
JP2005507869	A group of novel anti-cancer compounds with special structures

Kiyoshi Takeuchi
Takeshi Nakamura

JP33420395A

September 28, 2005

November 30, 1995

Click for automatic bibliography generation  

Fuji Photo Film Co., Ltd.

C07D233/70; C07C245/08; C07C271/28; C07D207/335; C07D207/34; C07D207/36; C07D209/14; C07D209/34; C07D213/42; C07D213/61; C07D215/38; C07D215/40; C07D217/26; C07D231/52; C07D233/74; C07D239/42; C07D277/20; C07D277/56; C07D277/82; C07D307/52; C07D307/80; C07D401/12; C07D403/12; C07D405/12; C07D417/12; C07D475/00; C09B27/00; C09B41/00; G03C1/83; G03C7/413; (IPC1-7): C09B41/00

JP5241282A
JP7261346A

Toshizo Iida

Previous Patent: REPRODUCING DEVICE AND REPRODUCING METHOD FOR INFORMATION RECORDING MEDIUM

Next Patent: TOP-LIGHT FLUORESCENCE MICROSCOPE