Process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propan

Details Process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propan Process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propan

1979-11-07

1983-02-15

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

260465E, 560 1, C07C 8764

Patent

active

043742726

ABSTRACT:
A process for preparing 2-(4'-hydroxyaryl)-2-(4'-aminoaryl)-propanes of the general formula ##STR1## wherein R represents a hydrogen or halogen atom or an alkyl, aryl, nitro, nitrile, acyl, acyloxy or amino group, R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R.sup.2 and R.sup.3, independently from each other, represent a hydrogen or halogen atom, a nitro group or an alkyl group having 1 to 4 carbon atoms,
which comprises reacting (A) at least one isopropenyl phenol compound selected from the group consisting of isopropenyl phenol derivatives of the general formula ##STR2## wherein R is as defined, and di- to eicosa-mers of said isopropenyl phenol derivatives with (B) an aromatic amine of the general formula ##STR3## wherein R.sup.1 , R.sup.2 and R.sup.3 are as defined, in the presence of 0.00001 to 0.008 mole, per mole of said isopropenylphenol compound (A) calculated as a monomer, of a acid catalyst and in the presence or absence of a phenolic solvent.

REFERENCES:
patent: 3311660 (1967-03-01), Krimm et al.
patent: 3418371 (1968-12-01), Krimm et al.
patent: 3496239 (1970-02-01), Hamilton et al.

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