4-Quinolinol derivatives and agrohorticultural bactericides containing the same as active ingredient

A 4-quinolinol derivative represented by the general formula (I):

• 4
• wherein
• R1 represents
• a hydrogen atom,
• an alkali metal,
• an alkaline earth metal, or
• COR4 in which R4 is
• a hydrogen atom,
• an optionally substituted C1-C18 alkyl group,
• an optionally substituted C2-C18 alkenyl group,
• an optionally substituted C3-C10 cycloalkyl group,
• an optionally substituted phenyl lower alkyl group,
• an optionally substituted phenoxy lower alkyl group,
• an optionally substituted aryl group,
• OR5 in which R5 is an optionally substituted lower alkyl group, an optionally substituted aryl group, an optionally substituted heterocycle, an optionally substituted phenyl lower alkyl group or an optionally substituted phenoxy lower alkyl group, or
• NR6R7 in which R6 and R7 are each a hydrogen atom, an optionally substituted C1-C6 alkyl group or an optionally substituted phenyl group, or R6 and R7 together with N may form a four- to six-membered ring containing one or two heteroatoms;
• R2 represents an optionally substituted lower alkyl group;
• R3 represents
• an optionally substituted C1-C18 alkyl group,
• an optionally substituted lower alkenyl group, or
• an optionally substituted lower alkoxy group;
• or
• R2 and R3 together represent —(CH2)m— in which m is 3 or 4;
• and
• W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which is
• a halogen atom,
• an optionally substituted C1-C10 alkyl group,
• an optionally substituted lower alkenyl group,
• an optionally substituted lower alkynyl group,
• an optionally substituted C1-C10 alkoxy group,
• an optionally substituted C3-C10 cycloalkyl group,
• an optionally substituted aryl group,
• an optionally substituted aryloxy group,
• NR8R9 in which R8 and R9 are each a hydrogen atom, an optionally substituted C1-C6 alkyl group or an optionally substituted phenyl group, or R8 and R9 together with N may form a four- to six-membered ring containing one or two heteroatoms,
• COR10 in which R10 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkenyl group,
• COOR11 in which R11 is a hydrogen atom, an optionally substituted lower alkyl group or an optionally substituted lower alkenyl group,
• a nitro group, or
• a cyano group;
• provided that, compounds represented by the formula (I) in which R1 represents hydrogen;
• R2 represents methyl or ethyl;
• R3 represents methyl, —CH2—CH═CH—(CH2)5—CH3, —CH(OH)—CH═CH—(CH2)5—CH3, —CH(OH)—C C—(CH2)5—CH3, —CH═CH—CH2—(CH2)5—CH3 or —CH2—C C—(CH2)5—CH3;
• and W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which is halogen, C1-C10 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy or nitro;
• and compounds represented by the formula (I) in which R1 represents COR4 in which R4 is hydrogen, C1-C18 alkyl, C2-C18 alkenyl, optionally substituted C3-C10 cycloalkyl, phenyl lower alkyl, phenoxy lower alkyl or aryl;
• R2 represents C1-C4 alkyl;
• R3 represents C1-C10 alkyl, C1-C4 alkenyl, —CH2—CH═CH—(CH2)5—CH3, —CH(OH)—CH═CH—(CH2)5—CH3, —CH(OH)—C C—(CH2)5—CH3, —CH═CH—CH2—(CH2)5—CH3 or —CH2—C C—(CH2)5—CH3, or R2 and R3 together represent —(CH2)m— in which m is 3 or 4;
• and W represents 1 to 4 substituents on the nucleus which may be identical or different and each of which is halogen, C1-C10 alkyl or C1-C4 alkoxy, are excluded;
• and agriculturally and horticulturally acceptable acid addition salts thereof.