Title:
METHOD FOR PREPARING AMINOAZO COMPOUND BY USING NITROGEN OXIDE-DISSOLVED AUXILIARY SUBSTANCE
Document Type and Number:
WIPO Patent Application WO/2018/101752
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing an aminoazo compound by using a nitrogen oxide-dissolved auxiliary substance and, more specifically, to a novel method for preparing an aminoazo compound having high yield, stability, and economic feasibility, the method comprising a rearrangement process step of using, as a reaction medium, an auxiliary substance acting as a stabilizer so as to heat a material mixture comprising a diazo compound and perform rearrangement on the same, wherein a part and/or all of a reaction mixture, which is prepared by using the material mixture and the auxiliary substance as a reaction medium, is subsequently used through a diazotization continuous process of an amine compound.
Inventors:
PARK JAE BUM (KR)
KIM KANG HYEON (KR)
PARK KYOUNG BAE (KR)
MILAN KUCERA (SK)
GABRIEL KEVICKY (SK)
MILAN KRALIK (SK)
KIM KANG HYEON (KR)
PARK KYOUNG BAE (KR)
MILAN KUCERA (SK)
GABRIEL KEVICKY (SK)
MILAN KRALIK (SK)
Application Number:
PCT/KR2017/013857
Publication Date:
June 07, 2018
Filing Date:
November 29, 2017
Export Citation:
Assignee:
HUCHEMS FINE CHEMICAL CORP (KR)
International Classes:
C07C245/08; C07C211/46; C07C211/55; C07C245/12
Foreign References:
| KR800001701B1 | 1980-12-31 | |||
| US4020051A | 1977-04-26 | |||
| EP0035815A1 | 1981-09-16 | |||
| US1589936A | 1926-06-22 | |||
| EP0052511A1 | 1982-05-26 | |||
| KR20170060535A | 2017-06-01 |
Attorney, Agent or Firm:
OAM PATENT & TRADEMARK LAW FIRM (KR)
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