Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1994-10-06
1996-11-12
Burn, Brian M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
564434, C07C20902
Patent
active
055741878
ABSTRACT:
Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.
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Barrows Franklin H.
Ferrandino Mark P.
Lin Chung-Yuan
Malz Russell E.
Smith Gerard V.
Burn Brian M.
Thompson Raymond D.
Uniroyal Chemical Company, Inc.
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