Imidazole derivatives

An imidazole compound of the formula ##STR10## wherein R.sup.1 is hydrogen;

• C.sub.1-10 -alkyl substituted by halogen, hydroxy, C.sub.1-4 -alkoxy, amino, C.sub.1-4 -alkylamino or C.sub.1-4 -dialkylamino;
• C.sub.1-10 -perfluoroalkyl;
• C.sub.2-10 -alkenyl;
• C.sub.2-10 -alkenyl substituted as indicated for alkyl;
• C.sub.2-10 -alkynyl;
• C.sub.2-10 -alkynyl substituted as indicated for alkyl;
• C.sub.3-10 -cycloalkyl;
• C.sub.3-10 -cycloalkyl substituted as indicated for alkyl;
• C.sub.3-10 -cycloalkenyl;
• C.sub.3-10 -cycloalkenyl substituted as indicated for alkyl;
• C.sub.3-10 -cycloalkyl or cycloalkenyl wherein a --CH.sub.2 -- group is replaced by an oxygen atom;
• C.sub.6-10 -aryl;
• C.sub.6-10 -aryl substituted by 1-3 of halogen, nitro, cyano, hydroxy, mercapto, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, C.sub.1-4 -alkylthio, C.sub.1-4 -alkylsulfinyl, C.sub.1-4 -alkylsulfonyl, or amino mono- or disubstituted by C.sub.1-4 -alkyl, C.sub.1-4 -alkanoyl or sulfonyl;
• C.sub.7-10 -aralkyl;
• C.sub.7-10 -aralkyl mono- or disubstituted in the aryl portion by halogen, C.sub.1-4 -alkoxy, C.sub.1-4 -alkyl, or amino mono- or disubstituted by C.sub.1-4 -alkyl, C.sub.1-4 -alkanoyl or sulfonyl;
• C.sub.5-6 -heteroaryl containing one or two sulfur, oxygen or nitrogen atoms;
• C.sub.5-6 -heteroaryl containing one or two sulfur, oxygen or nitrogen atoms substituted on a carbon atom as defined for aryl;
• n is 1-2;
• R.sup.2 is hydrogen halogen, amino, mono- or disubstituted amino, azide, thiocyanate or cyano, C.sub.1-10 -alkyl, C.sub.1-10 -alkyl substituted by halogen, or an --OR.sup.1 group wherein R.sup.1 is selected from the groups defined above, or
• when OR.sup.1 and R.sup.2 are on adjacent C-atoms, then
• R.sup.1 and R.sup.2 jointly with the oxygen atom can form a saturated or unsaturated 5- to 7-membered ring, or such a ring which contains a nitrogen, sulfur or additional oxygen atom,
• R.sup.3 is hydrogen, C.sub.1-6 -alkyl, or C.sub.1-6 -alkoxyalkyl,
• R.sup.4 is --COOR.sup.5, --CONR.sup.6 R.sup.7, --CN, ##STR11## wherein R.sup.5 is hydrogen, C.sub.1-6 -alkyl,
• R.sup.6 and R.sup.7 are each independently C.sub.1-7 -alkyl, C.sub.3-7 -cycloalkyl, C.sub.3-7 -cycloalkenyl, or jointly with the nitrogen atom R.sup.6 and R.sup.7 form a saturated five-or six-membered ring, or such a ring that contains an oxygen, sulfur or an additional nitrogen atom, R.sup.8 is hydrogen, C.sub.1-7 -alkyl, C.sub.3-7 -cycloalkyl or C.sub.3-7 -cycloalkenyl.