Preparation of n-phenyl-n'-alkylphenylenediamines

Details Preparation of n-phenyl-n'-alkylphenylenediamines Preparation of n-phenyl-n'-alkylphenylenediamines

C - Chemistry, Metallurgy

07

C

260/597.9

C07C 209/36 (2006.01)

Patent

CA 1133517

PREPARATION OF N-PHENYL-N'-ALKYLPHENYLENEDIAMES ABSTRACT The desired compounds, namely, N-phenyl-N'-alkylphenylenedi- amines, are prepared by the reductive alkylation of a nitrogen-containing diphenylamine and a ketone in the presence of hydrogen and a hydrogenation catalyst. The desired product may be obtained in a more economical way when effecting the process in a continuous manner by utilizing an organic solvent for the reaction which comprises an ether compound such as a monoether of a dihydric alcohol, a diether of a dihydric alcohol, or a cyclic diether.

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