Process for producing alkoxy-substituted triphenylamines

Details Process for producing alkoxy-substituted triphenylamines Process for producing alkoxy-substituted triphenylamines

1995-12-19

1997-08-05

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564433, 564397, 564398, C07C20904, C07C20918

Patent

active

056544839

ABSTRACT:
A process for producing an alkoxy-substituted tri-phenylamine comprising reacting an alkoxy-substituted cyclohexanone with a diphenylamine or an aniline, while forming said cyclohexanone in the same system from an alkoxy-substituted phenol by using said phenol as a hydrogen acceptor, in the presence of a hydrogen transfer catalyst and a catalytic amount of the alkoxy-substituted cyclohexanone corresponding to the alkoxy-substituted phenol used for the reaction, or after converting partially the alkoxy-substituted phenol to a catalytic amount of the alkoxy-substituted cyclohexanone under a hydrogen pressure in the presence of a hydrogen transfer catalyst, wherein a surface-supported catalyst is used as the hydrogen transfer catalyst.

REFERENCES:
patent: 5344987 (1994-09-01), Immel et al.
patent: 5449829 (1995-09-01), Kusuda et al.
patent: 5545752 (1996-08-01), Nagata et al.
Nagata et al., Chemical Abstracts, vol. 105, abstract 226014f 1986.

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