Benzoxaborole fungicides

A compound of formula (I)

• wherein
• R1 is H, fluorine, chlorine, bromine, cyano, nitro, unsubstituted or substituted C1-C4alkyl, unsubstituted or substituted C1-C4alkoxy, unsubstituted or substituted or C1-C4haloalkyl;
• R3 is selected from H, unsubstituted or substituted C1-C4alkyl, unsubstituted or substituted C1-C4haloalkyl, unsubstituted or substituted six- to ten-membered aryl, unsubstituted or substituted five- to six-membered heteroary, unsubstituted or substituted C3-C7 cycloalkyl, or unsubstituted or substituted C3-C7 heterocycloalkyl;
• R2 is ═O, ═N—O—R5, ═N—NR6R7, ═N—N(CO)R6, ═N—NH(CO)NR8R9 or ═N—NH(CS)NR8R9
• R5, R6, R7, R8 and R9 are independently of each other hydrogen, unsubstituted or substituted C1-C10alkyl, unsubstituted or substituted C1-C10 haloalkyl, unsubstituted or substituted C1-C10alkoxy(C1-C10)alkyl, unsubstituted or substituted C2-C10alkenyl, unsubstituted or substituted C2-C10haloalkenyl, unsubstituted or substituted C2-C10alkynyl, unsubstituted or substituted C3-C7cycloalkyl(alkylene)(0-2), unsubstituted or substituted six- to ten-membered-aryl(alkylene)(0-2), or unsubstituted or substituted five- to ten-membered heteroaryl(alkylene)(0-2);
• wherein the substituents for the substituted aryl, heteroaryl, cycloalkyl and heterocycloalkyl moieties can be independently mono- or polysubstituted by substituents selected from the group consisting of halogen, hydroxy, nitro, cyano, C1-C6alkyl, C1-C6haloalkyl, C1-C6alkenyl, C1-C6haloalkenyl, C1-C6alkinyl, C1-C6haloalkinyl, C1-C6alkoxy, C1-C6haloalkoxy, C1-C6alkenyloxy, C1-C6haloalkenyloxy, C1-C6alkinyloxy, C1-C6haloalkinyl, C1-C6alkoxy-C1-C6alkyl, C1-C6haloalkoxy, C1-C6alkoximino, C1-C6alkylendioxy, —C(O)(C1-4 alkyl), —(C1-4 alkyl)-C(O)(C1-4 alkyl), —C(O)OH, —(C1-4 alkyl)-C(O)OH, unsubstituted or substituted six- to ten-membered-aryl(alkylene)(0-1) and unsubstituted or substituted six- to ten-membered-aryl(alkylene)(0-1)oxy;
• and wherein the substituents for the substituted cycloalkyl, heterocycloalkyl and alkyl can be independently mono- or polysubstituted by substituents selected from oxo, —OH, CN, NO2, F, Cl, C1-4alkoxy, —C(O)(C1-4 alkoxy), —C(O)(C1-4 alkyl), —C(O)—NH—(C1-4 alkyl), —C(O)—N(C1-4 alkyl)2, C1-4alkylamino, unsubstituted or substituted five- to ten-membered aryl, unsubstituted or substituted five- to six-membered heteroary, unsubstituted or substituted C3-C7 cycloalkyl, and unsubstituted or substituted C3-C7 heterocycloalkyl;
• and wherein the heterocycloalkyl and the heteroaryl contain 1 to 3 hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur, it not being possible for the ring system to contain more than 2 oxygen atoms and more than 2 sulfur atoms;
• or an agronomically acceptable salt, stereoisomer,
• diastereoisomer, enantiomer, tautomer, atriopisomer or N-oxide thereof
• provided that
• if R1 is H then R5 is not methyl
• if R1 is H then R5 is not benzyl
• R1 and R3 are defined under formula I, provided that
• If R1 is H then —C(O)—R3 is not 6-CHO
• If R1 is H then —C(O)—R3 is not 4-CHO
• If R1 is 4-F then —C(O)—R3 is not 7-CHO
• If R1 is 4-OCH3 then —C(O)—R3 is not 7-CHO
• If R1 is H then —C(O)—R3 is not 5-CHO
• If R1 is H then —C(O)—R3 is not 7-CHO
• and if R1 is H then R3 is not butyl or phenyl.

A compound of formula (II)

• wherein R1 and R3 are defined under formula (I), provided that
• if R1 is H then —C(O)—R3 is not 6-CHO,
• if R1 is H then —C(O)—R3 is not 4-CHO,
• if R1 is 4-F then —C(O)—R3 is not 7-CHO,
• if R1 is 4-OCH3 then —C(O)—R3 is not 7-CHO
• if R1 is H then —C(O)—R3 is not 5-CHO,
• if R1 is H then —C(O)—R3 is not 7-CHO,
• and if R1 is H then R3 is not butyl or phenyl.