- PYRAZOLINONE DERIVATIVE, MANUFACTURING METHOD THEREFOR AND HERBICIDE CONTAINING THE SAME AS ACTIVE INGREDIENT
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PROBLEM TO BE SOLVED: To provide a compound having excellent weed controlling effect and useful as an active ingredient of a herbicide. SOLUTION: There are provided a pyrazolinone derivative represented by the formula (1), a manufacturing method therefor and herbicide containing the same. (1), where R1 is a halogen atom, R2 and R3 are integrally a trimethylene group (-(CH2)3-), a tetramethylene group (-(CH2)4-), a pentamethylene group (-(CH2)5-) or an oxydiethylene group (-(CH2)2O(CH2)2-), R4 is H or a halogen atom, R5 is a halogen atom, Ar is 3-oxo-1,4-benzoxazine-5-yl group, a 2,2-difluoro-3-oxo-1,4-benzoxazine-5-yl group or a 3,4-dihydro-2-oxo quinoxaline-5-yl group. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT
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Paragraph 0268
(2016/10/09)
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