JPH0118071B

1. Claims for the contracting states : BE, CH, DE, FR, GB, IT, LU, NL, SE 3,4-Disubstituted 2-phenylimino-imidazolidines of general formula (I) see diagramm : EP0012822,P5,F1 wherein Z represents a radical selected from the group comprising 3-fluoro-4-methylphenyl, 4-fluoro-3-methylphenyl, 4-fluoro-3-nitrophenyl, 4-fluoro-3-chlorophenyl and 4-fluoro-3-aminophenyl, and the acid addition salts thereof. 1. Claims for the contracting state : AT Process for the preparation of 3,4-disubstituted 2-phenylimino-imidazolidines of general formula (I) see diagramm : EP0012822,P6,F1 wherein Z represents a radical selected from the group comprising 3-fluoro-4-methylphenyl, 4-fluoro-3-methylphenyl, 4-fluoro-3-nitrophenyl, 4-fluoro-3-chlorophenyl and 4-fluoro-3-aminophenyl, and the acid additions salts thereof, characterised in that a) a compound of the formula (II) see diagramm : EP0012822,P6,F3 wherein Z is as hereinbefore defined and X and Y, which may be the same or different, represent a chlorine atom, an alkylthio group with 1 to 4 carbon atoms or an amino or ammonium group, is reacted with ethylenediamine or an acid addition salt thereof ; or b) the aliphatic acyl group is hydrolytically split off from a 1-acyl-2-phenylamino-imidazoline of general formula (III) see diagramm : EP0012822,P6,F5 wherein Z is as hereinbefore defined and R represents an aliphatic acyl group ; or c) in order to prepare 2-(4-fluoro-3-aminophenylimino)-imidazolidine, 2-(4-fluoro-3-nitrophenylimino)-imidazoline is hydrogenated and, if desired, the compound thus obtained is converted into a physiologically acceptable acid addition salt.