Plant growth regulating compounds

A compound of formula (I)

• wherein
• W1 and W2 are each independently O or S;
• R1 and R2 are each independently hydrogen, halogen, nitro, hydroxyl, cyano, substituted or unsubstituted C1-C6alkyl, substituted or unsubstituted C1-C6alkoxy, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl;
• or
• R1 and R2 together with the carbon atoms to which they are joined form a saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 3-7-membered carbocycle;
• or,
• R1 and R2 together with the carbon atoms to which they are joined form a saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 4-7-membered carbocycle fused to another saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 3-7-membered carbocycle or heterocycle;
• X1 and X2 are independently hydrogen, C1-C6alkyl, C1-C6haloalkyl, halogen, C1-C6alkoxy, cyano, nitro, C1-C6alkylsulfinyl, C1-C6alkylsulfonyl or C1-C6alkylthio;
• Y2 is oxygen, or —(CR4R7)p(CR3R8)nN(R6)—, wherein n is 0 or 1, and p is 0 or 1;
• R3 and R4 are each independently hydrogen, halogen, nitro, hydroxyl, cyano, substituted or unsubstituted C1-C6alkyl, substituted or unsubstituted C1-C6alkoxy, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl;
• or,
• R3 and R4 together with the carbon atoms to which they are joined form a saturated or unsaturated, non-aromatic, substituted or unsubstituted 3-7-membered carbocycle;
• or
• R3 and R4 together with the carbon atoms to which they are joined form a saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 4-7-membered carbocycle fused to another saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 3-7-membered carbocycle;
• or
• R2 and R3 together with the carbon atoms to which they are joined form (i) a saturated or unsaturated, non-aromatic, substituted or unsubstituted 3-7-membered carbocycle, or (ii) a saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 4-7-membered carbocycle fused to another saturated or unsaturated, aromatic or non-aromatic, substituted or unsubstituted 3-7-membered carbocycle;
• R7 and R8 are each independently selected from hydrogen, C1-C6 alkyl, C1-C6 haloalkyl, halogen, C1-C6 alkoxy, aryloxy, C1-C6 alkylsulfinyl, C1-C6 alkylsulfonyl, C1-C6 alkylthio;
• Y1 is S or NR5;
• R5 and R6 are each independently hydrogen, C1-C6 alkoxy, hydroxyl, amine, N—C1-C6 alkylamine, N,N-di-C1-C6 alkylamine, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C3-C6 cycloalkyl, substituted or unsubstituted C2-C6 alkenyl, substituted or unsubstituted C2-C6 alkynyl, substituted or unsubstituted C1-C8 alkylcarbonyl, substituted or unsubstituted C1-C8 alkoxycarbonyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted heterocyclyl, substituted or unsubstituted benzyl;
• and
• X3 and X4 are each independently selected from hydrogen, C1-C6 alkyl, C2-C3 alkynyl, C1-C6 haloalkyl, halogen, C1-C6 alkoxy, C1-C6 alkylsulfinyl, C1-C6 alkylsulfonyl, C1-C6 alkylthio;
• or
• X3 and X4 together with the carbon atoms to which they are attached form a C5- or C6-cycloalkyl;
• or an agrochemically acceptable salt or N-oxide thereof.