Title:
PROCESS FOR PRODUCING 4-AMINODIPHENYLAMINE
Document Type and Number:
WIPO Patent Application WO/1995/009148
Kind Code:
A1
Abstract:
A process for producing directly a 4-aminodiphenylamine by reacting an aniline with an azobenzene in the presence of a base, wherein the yield and selectivity of the 4-aminodiphenylamine are improved by using a suitably selected solvent.
Inventors:
YOSHIZAWA TOSHIO (JP)
UEYAMA KENTA (JP)
IGARASHI MAKOTO (JP)
SASAKI MASAKI (JP)
KANO HARUKICHI (JP)
ICHIKAWA YATARO (JP)
UEYAMA KENTA (JP)
IGARASHI MAKOTO (JP)
SASAKI MASAKI (JP)
KANO HARUKICHI (JP)
ICHIKAWA YATARO (JP)
Application Number:
PCT/JP1994/001612
Publication Date:
April 06, 1995
Filing Date:
September 29, 1994
Export Citation:
Assignee:
SEIKO KAGAKU KABUSHIKI KAISHA (JP)
YOSHIZAWA TOSHIO (JP)
UEYAMA KENTA (JP)
IGARASHI MAKOTO (JP)
SASAKI MASAKI (JP)
KANO HARUKICHI (JP)
ICHIKAWA YATARO (JP)
YOSHIZAWA TOSHIO (JP)
UEYAMA KENTA (JP)
IGARASHI MAKOTO (JP)
SASAKI MASAKI (JP)
KANO HARUKICHI (JP)
ICHIKAWA YATARO (JP)
International Classes:
C07C209/42; C07C209/02; C07C209/60; C07C211/54; C07C255/58; (IPC1-7): C07C211/54; C07B43/04; C07C209/60; C07C211/56; C07C213/02; C07C217/84; C07C253/30; C07C255/58
Domestic Patent References:
| WO1993024450A1 | 1993-12-09 |
Foreign References:
| US5117063A | 1992-05-26 | |||
| JPS63165347A | 1988-07-08 |
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