Title:
【発明の名称】N-脂肪族置換p-フェニレンジアミンの製造方法
Document Type and Number:
Japanese Patent JP3481941
Kind Code:
B2
Abstract:
A process for preparing N-aliphatic substituted p-phenylenediamine intermediates is provided which comprises contacting an aliphatic amine or substituted aliphatic amine derivative and nitrobenzene in the presence of a suitable solvent system, and reacting the aliphatic amine or substituted aliphatic amine derivative and nitrobenzene in the presence of a suitable base and a controlled amount of protic material at a suitable temperature in a confined reaction zone. In one embodiment, the N-aliphatic substituted p-phenylenediamine intermediates are reduced to N-aliphatic substituted p-phenylenediamines and the N-aliphatic substituted p-phenylenediamines can be reductively alkylated to N'-alkylated, N-aliphatic substituted p-phenylenediamines. In another embodiment of the invention, N-aliphatic substituted p-phenylenediamine intermediates are reductively alkylated to N'-alkylated, N-aliphatic substituted p-phenylenediamines.
Inventors:
Stern, Michael Keith
Brian Kai-Ming, Chiang
Brian Kai-Ming, Chiang
Application Number:
JP50051994A
Publication Date:
December 22, 2003
Filing Date:
April 13, 1993
Export Citation:
Assignee:
Monsanto Company
International Classes:
B01J31/12; C07B61/00; C07C201/08; C07C209/02; C07C209/24; C07C209/36; C07C209/38; C07C209/60; C07C211/03; C07C211/09; C07C211/35; C07D295/02; C07C211/50; C07C211/51; C07C211/52; C07C309/45; C07D211/04; C07D295/06; (IPC1-7): C07C211/52; C07C209/24; C07C209/36; C07C209/38; C07C209/60; C07C211/50; C07C309/45; C07D211/04
Domestic Patent References:
| JP6372658A | ||||
| JP49102629A | ||||
| JP7507297A | ||||
| JP6508630A |
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)