Substituted 4-Alkoxypyrimidines, Process for their preparation, agents containing them, and their use as pesticides

A substituted 4-alkoxypyrimidine of the formula I ##STR831## in which R.sup.1 is hydrogen, halogen, (C.sub.1 -C.sub.4)alkyl or (C.sub.3 -C.sub.6)cycloalkyl,

• R.sup.2 is methoxymethyl,
• R.sup.3 is methoxy
• R.sup.4 is hydrogen, (C.sub.1 -C.sub.4)alkyl, (C.sub.3 -C.sub.6)cycloalkyl or (C.sub.1 -C.sub.4)haloalkyl,
• Q has the meaning of Q.sup.1 and
• Q.sup.1 is (C.sub.1 -C.sub.15) unbranched or branched hydrocarbon and which is optionally substituted by one, two or three halogen atoms, a (C.sub.1 -C.sub.15)alkoxy-(C.sub.1 -C.sub.15)alkoxy group, a (C.sub.1 -C.sub.15)alkylthio group, a (C.sub.1 -C.sub.15)alkylsulfinyl group, a (C.sub.1 -C.sub.15)alkylsulfonyl group, a (C.sub.1 -C.sub.15)alkanoyl group, a (C.sub.4 -C.sub.8)cycloalkylalkoxy group, a (C.sub.4 -C.sub.8)cycloalkylalkylthio group, a benzyloxy or a phenoxybenzyloxy group, or
• Q has the meaning of Q.sup.2 and
• Q.sup.2 is a group of the formula IIa-IIj ##STR832## in which A is oxygen, --O--CH.sub.2 --, sulfur, sulfinyl or sulfonyl,
• A' is oxygen or sulfur,
• D is a (C.sub.1 -C.sub.6)alkylene group,
• E is a direct bond,
• R.sup.5, R.sup.6 and R.sup.6' are identical or different and are in each case hydrogen, halogen, (C.sub.1 -C.sub.8)alkyl, (C.sub.2 -C.sub.8)alkenyl, (C.sub.2 -C.sub.8)alkynyl, (C.sub.3 -C.sub.6)cycloalkyl, (C.sub.1 -C.sub.8)haloalkyl, (C.sub.1 -C.sub.8)alkoxy, (C.sub.1 -C.sub.8)alkylthio, (C.sub.1 -C.sub.8)alkylsulfinyl, (C.sub.1 -C.sub.8)alkylsulfonyl, (C.sub.1 -C.sub.4)dialkylamino or nitro,
• R.sup.7 is halogen, (C.sub.1 -C.sub.8)alkyl, (C.sub.2 -C.sub.8)alkenyl, (C.sub.2 -C.sub.8)alkynyl, (C.sub.3 -C.sub.6)cycloalkyl, (C.sub.1 -C.sub.8)haloalkyl, (C.sub.1 -C.sub.8)alkoxy, (C.sub.1 -C.sub.8)alkylthio, (C.sub.1 -C.sub.8)alkylsulfinyl, (C.sub.1 -C.sub.8)alkylsulfonyl, (C.sub.1 -C.sub.4)dialkylamino, nitro, (C.sub.1 -C.sub.4)alkoxy-(C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxycarbonyl, (C.sub.1 -C.sub.8)alkanoyl or a group of the formula III ##STR833## in which X and Y are identical or different and are in each case sulfur or oxygen and
• R.sup.8 is hydrogen or (C.sub.1 -C.sub.4)alkyl, or
• Q has the meaning of Q.sup.3 and
• Q.sup.3, is a group of the formula IV ##STR834## in which R.sup.5 and R.sup.6 have the abovementioned meanings, U is a direct bond, sulfur, sulfinyl, sulfonyl or methylene,
• R.sup.9 is phenyl or a heterocyclic radical, where each of the two abovementioned radicals can be unsubstituted or substituted with one or two substituents and these substituents are identical or different and are in each case halogen, (C.sub.1 -C.sub.4)alkyl, trifluoromethyl, nitro, (C.sub.1 -C.sub.4)alkoxy, (C.sub.1 -C.sub.4)alkylthio, (C.sub.1 -C.sub.4)alkylsulfinyl, (C.sub.1 -C.sub.4)alkylsulfonyl, (C.sub.1 -C.sub.4)alkoxy-(C.sub.1 -C.sub.4)alkyl, phenyl, phenoxy, (C.sub.1 -C.sub.4)alkoxyphenoxy, halophenoxy or (C.sub.1 -C.sub.4)alkylphenoxy,
• or U is oxygen and R.sup.9 is as defined above or is (C.sub.1 -C.sub.4)haloalkyl or a group of the formula V ##STR835## in which W is nitrogen or a group CR.sup.10 in which
• R.sup.10 is hydrogen, fluorine, cyano, formyl, acetyl, nitro, methyl, methoxy or 1,3-dioxolan-2-yl,
• R.sup.11, R.sup.12 and R.sup.13 are identical or different and ar (C.sub.1 -C.sub.15)alkyl which is optionally monosubstituted or polysubstituted by halogen, or is ##STR836## in which R.sup.6 and R.sup.6' are as defined above, and the salts and stereoisomers thereof.