Method of preparing 4-aminodiphenylamine

Details Method of preparing 4-aminodiphenylamine Method of preparing 4-aminodiphenylamine

1991-06-21

1992-05-26

Raymond, Richard L.

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

Organic compounds

Amino nitrogen containing

564397, 564408, 564420, 564421, 564423, 564433, 564434, C07C20902, C07C20926, C07C20936, C07C20938

Patent

active

051170639

ABSTRACT:
A method of producing 4-ADPA is disclosed wherein aniline and nitrobenzene are reacted under suitable conditions to produce 4-nitrodiphenylamine and/or 4-nitrosodiphenylamine and/or their salts, either or both of which are subsequently reduced to produce 4-ADPA. The 4-ADPA can be reductively alkylated to produce p-phenylenediamine products which are useful as antiozonants.

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