AZETHIDINE DERIVATIVE, PLANT GROWTH RETARDANT CONTAINING IT AND PLANT GROWTH CONTROL USING IT

摘要

Azetidine derivatives of the formula I IMAGE (I) where R1 and R2 are each hydrogen or C1-C3-alkyl, A is -XR3 or -N(R5)-OR4, X is oxygen or sulfur, R3 is C1-C20-alkyl, C1-C20-haloalkyl, C3-C18-alkenyl, C3- or C4-alkynyl, bridged C3-C12-cycloalkyl or C4-C12-alkylcycloalkyl, the cycloalkyl radicals or alkylcycloalkyl radicals being unsubstituted or substituted by C1-C5-alkyl or cyclohexyl, R4 is C1-C20-alkyl, C1-C12-haloalkyl, C1-C6-cyanoalkyl, C1-C12-alkoxyalkyl, C3-C18-alkenyl, C3-C18-haloalkenyl, C3- or C4-alkynyl, C3-C12-cycloalkyl or C4-C12-cycloalkylalkyl, C3-C16-alkoxycarbonylalkyl or unsubstituted or substituted C7-C20-aralkyl and R5 is hydrogen or C1-C3-alkyl, and agents and methods for regulating plant growth.