| abstract |
Aminodiphenyl (I) is sepd. from diphenylamine (II) by adding 1-10000 mols. of a cpd. with double-linked O, of formula A=O (III) w.r.t. 1 mol of (I), at 50-310 deg C, and sepg. (II) from the mixt. A=1-20 C residue from a carbonyl cpd. comprising (un)satd., open-chain or cyclic, aliphatic or aromatic aldehyde, ketone or quinone, a 1-30 C residue from an aliphatic, aromatic or araliphatic mono- or poly-carboxylic acid or deriv., the residue of a carbonic acid deriv., the residue of a nitroso cpd. or an O atom. |