Azetidine derivatives, processes for their preparation and their use as pesticides

Azetidine derivatives of the formula (I)

• 70
• in which the symbols and indices are as defined below:
• R1 is aryl or heteroaryl, which are unsubstituted or mono- or polysubstituted by identical or different substituents;
• R2 and R3 are aryl or heteroaryl, which are unsubstituted or mono- or polysubstituted by identical or different substituents, it also being possible for the two groups to be bridged by a joint substituent;
• M is unsubstituted or substituted (CH2)l, where l=1, 2 or 3, is CO or —HN—C(O);
• X is H, OH, halogen, OR4 or CN;
• Y is (O), H, OH, OR4, R4;
• in the case of the four lastmentioned groups—in which the nitrogen carries a positive charge—in combination with a corresponding anion;
• R4 are identical or different (C1-C4)-alkyl, (C1-C4)-alkanoyl or (C1-C4)-haloalkyl groups;
• m is 0, 1, 2, 3 or 4;
• n is 0 or 1;
• except for compounds in which
• Y is CN,
• R1 is unsubstituted phenyl,
• R2 is unsubstituted phenyl,
• R3 is unsubstituted phenyl or pyridyl and,
• n is 0.