Phthalimides useful as intermediate compounds

A phthalimide of the formula IX ##STR206## where R.sup.3

• is hydrogen or C.sub.1 -C.sub.6 -alkyl;
• R.sup.4
• is hydrogen, halogen or C.sub.1 -C.sub.6 -alkyl;
• R.sup.5
• is hydrogen or C.sub.1 -C.sub.6 -alkyl;
• or R.sup.3 and R.sup.4, R.sup.3 and R.sup.5 or R.sup.4 and R.sup.5 together may form C.sub.2 -C.sub.4 -alkylene or C.sub.2 -C.sub.4 -alkenylene;
• R.sup.6
• is hydrogen, C.sub.1 -C.sub.6 -alkyl, partially or completely halogenated C.sub.1 -C.sub.4 -alkyl which may be optionally substituted by a phenyl radical, or C.sub.2 -C.sub.6 -alkenyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkylthio-C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl or C.sub.5 -C.sub.7 -cycloalkenyl, wherein the C.sub.3 -C.sub.7 -cycloalkyl and C.sub.5 -C.sub.7 -cycloalkenyl may be optionally substituted by one to three of the following:
• hydroxyl, C.sub.1 -C.sub.4 -alkyl, partially or completely halogenated C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkylthio-C.sub.1 -C.sub.4 -alkyl;
• phenyl or pyridyl, both of which may be optionally substituted by one to three of the-following:
• nitro, cyano, hydroxyl, halogen, C.sub.1 -C.sub.4 -alkyl, partially or completely halogenated C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, partially or completely halogenated C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkylthio-C.sub.1 -C.sub.4 -alkyl.