| abstract |
New compounds of the formula in which R₁ is hydrogen, a silyl or acyl group, R₂ is methyl, ethyl, isopropyl or sec-butyl and R is hydrogen, unsubstituted or substituted straight-chain or branched-chain C₁-C₁₈-alkyl groups, unsubstituted or substituted cycloaliphatic groups having 3 to 10 carbon atoms, unsubstituted or substituted C₂-C₆-alkenyl groups, unsubstituted or substituted C₂-C₆-alkynyl groups , unsubstituted or substituted phenyl groups or unsubstituted or substituted benzyl groups. The active substances have advantageous pesticidal properties. They are particularly suitable for controlling pests in agriculture and stocks. |