Racemic and optically active compounds of the formulaQ-C.sub.n H.sub.2n -NH-Rwherein Q is ##STR1## where R.sub.1 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, trifluoromethyl or amino,R.sub.2 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or trifluoromethyl,R.sub.1 and R.sub.2, together with each other, are methylenedioxy or ethylenedioxy, andA is --O--, --CH.sub.2 --CH.sub.2 --, or --NR.sub.3 -- where R.sub.3 is hydrogen or alkyl or 1 to 4 carbon atoms,n is an integer from 2 to 6, inclusive, andR is hydrogen, benzyl or ##STR2## where R.sub.4 is hydrogen, methyl or ethyl,R.sub.5, R.sub.6 and R.sub.7, which may be identical to or different from each other, are each hydrogen, halogen, hydroxymethyl, trifluoromethyl, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, nitro, cyano, --CONHR.sub.3, --CONHOH, --COOR.sub.3, R.sub.8 O--, methylsulfonylmethyl or, when one or two of R.sub.5 through R.sub.7 are other than halogen or trifluoromethyl, also --NR.sub.3 R.sub.9,whereR.sub.3 has the meanings defined above,R.sub.8 is hydrogen, alkanoyl of 1 to 20 carbon atoms, alkyl of 1 to 4 carbon atoms, or aralkyl, andR.sub.9 is hydrogen, lower alkanoyl, methanesulfonyl, carbamoyl, dimethylsulfamoyl, or alkoxycarbonyl of 2 to 5 carbon atoms, andR.sub.5 and R.sub.6, together with each other, are --O--CH.sub.2 --O, --O--CH.sub.2 --CH.sub.2 --O--, --CH.dbd.CH--CH.dbd.CH--, --O--CH.sub.2 --CONH--, --CH.sub.2 --CH.sub.2 --COHN-- or --O--CO--NH--,and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as vasodilators and CNS-stimulators.