Tetrazolyl oxime derivative, salt thereof, and plant disease control agent

A tetrazolyl oxime derivative represented by formula (1-a) or (1-c), or salt thereof:

• wherein X represents a halogen atom;
• n1 represents an integer of 0 to 5, when n1 is 2 or more, plural X may be the same or different from each other;
• wherein Y represents a C1-8 alkyl group,
• wherein R represents a halogen atom, optionally substituted amino group, C1-8 alkyl group, C1-4 alkoxy group, or C1-4 alkyl thio group;
• n2 represents an integer of 0 to 3, when n2 is 2 or more, plural R may be the same or different;
• wherein R50 represents a hydrogen atom, optionally substituted C1-8 alkyl group, optionally substituted C2-8 alkenyl group, optionally substituted C2-8 alkynyl group;
• R51 represents a hydrogen atom, optionally substituted C1-8 alkyl group, cyano group;
• the substituted amino group is a methyl amino group, dimethyl amino group, methyl ethyl amino group, diethyl amino group, t-butoxycarbonyl methyl amino group, t-butoxycarbonyl amino group, acetyl methyl amino group, acetyl ethyl amino group, or benzoyl methyl amino group,
• the substituted C1-8 alkyl group is a chloromethyl group, methoxymethyl group, methyl thiomethyl group, methyl sulfonyl methyl group, dimethyl aminomethyl group, trichloromethyl group, trifluoromethyl group, or 2-chloroethyl group,
• the substituted C2-8 alkenyl group is a 2-chloroethenyl group, 2-fluoroethenyl group, 3,3,3-trifluoro-1-pentenyl group, 1,2,2-trifluoroethenyl group, 2,3,3-trifluoro-2-propenyl group, 2,3,3-triiodo-2-propenyl group, or 2-methoxyethenyl group,
• the substituted C2-8 alkynyl group is a 2-chloroethynyl group, 2-fluoroethynyl group, 3-fluoro-1-propynyl group, 3,3,3-trifluoro-1-propynyl group, 3-fluoro-2-propynyl group, or 3-iodo-2-propynyl group.