2-(Phenylmethylene)cycloalkylamines and -azetidines

A compound of the formula

• wherein
• n is 1, 2, 3 or 4 so that the resulting cycloalkyl ring is cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl;
• R is hydrogen, C.sub.1 to C.sub.3 -alkyl;
• R.sub.1 represents hydrogen or from one to two substituents on the phenyl ring selected from the group consisting of a halogen having an atomic number of from 9 to 35;
• C.sub.1 to C.sub.4 -alkyl,
• trifluoromethyl,
• hydroxy, carboxyl, and sodium and potassium salts thereof,
• C.sub.1 to C.sub.2 -alkyloxy,
• (C.sub.1 to C.sub.2 -alkyloxy)carbonyl (--C(O)O--C.sub.1 to C.sub.2 -alkyl),
• C.sub.2 to C.sub.5 -alkanoyloxy (--OC(O)--C.sub.1 to C.sub.4 -alkyl), hydroxymethyl,
• (C.sub.1 to C.sub.2 -alkanoyl)oxymethyl (C.sub.1 to C.sub.2 -alkanoyl-OCH.sub.2),
• --O--(CH).sub.2).sub.r --O-- bonded to the 3- and 4-ring carbons, where r is 1 or 2,
• (C.sub.1 to C.sub.3 -alkyl)oxymethyl (C.sub.1 to C.sub.3 -alkyl-OCH.sub.2),
• (C.sub.1 to C.sub.2 -alkyl)oxycarbonylmethyl, (C.sub.1 to C.sub.2 -alkyl--O--C(O)--CH.sub.2 --),
• --CH((R.sub.10)--C(O)--OR.sub.11 wherein R.sub.10 is hydrogen or C.sub.1 to C.sub.3 -alkyl and R.sub.11
• is hydrogen or C.sub.1 to C.sub.3 -alkyl,
• phenyl,
• phenoxy,
• benzyloxy,
• benzoyloxy,
• phenyl-C.sub.1 to C.sub.3 -alkyl,
• phenylethenyl,
• phenoxymethyl,
• and such phenyl, phenoxy, benzyloxy, benzoyloxy, phenyl-(C.sub.1 to C.sub.3 -alkyl), phenylethenyl, and phenoxymethyl groups substituted on the phenyl ring carbon atoms thereof with one or two substituents selected from the group consisting of halogen as defined above, trifluoromethyl, C.sub.1 to C.sub.2 -alkyl, C.sub.1 to C.sub.2 -alkyl, C.sub.1 to C.sub.2 -alkyloxy, and hydroxy;
• R.sub.2 and R.sub.3 are taken together with the nitrogen to which they are bonded to complete an azetidine ring of the formula ##STR12## wherein R.sub.4 denotes hydrogen, C.sub.1 to C.sub.2 -alkyl, 3-hydroxy, 3-(C.sub.1 to C.sub.2 -alkyloxy)- or 3-(C.sub.1 to C.sub.2 -alkanoyloxy);
• and the acid addition salts of such compounds.