PROBLEM TO BE SOLVED: To provide a compound having high activity against pests.SOLUTION: There is provided a 4-(arylethynyl)pyridine-based compound represented by the formula (I). [R1 represents a halogen atom, an alkyl group having 1 to 6 carbon atoms, a haloalkyl group, an alkoxyhaloalkyl group, an alkoxy group, a haloalkoxy group, a haloalkylthio group or the like R2 represents H, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, a haloalkyl group having 1 to 6 carbon atoms or the like R3 represents an alkyl group having 1 to 6 carbon atoms, an alkyl group having 1 to 6 carbon atoms substituted with an alkoxy group having 1 to 6 carbon atoms, an alkyl group having 1 to 6 carbon atoms substituted with a cycloalkyl group having 3 to 6 carbon atoms, an alkenyl group having 2 to 6 carbon atom, an alkynyl group having 2 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, a haloalkyl group having 1 to 6 carbon atoms or the like n represents an integer of 0 to 3 two adjacent R1 together may form a condensed ring together with a benzene ring or a pyridine ring.]COPYRIGHT: (C)2016,JPO&INPIT【課題】有害生物に対して高活性な化合物の提供。【解決手段】式(I)で表される4-(アリ-ルエチニル)ピリジン系化合物。〔R1はハロゲン原子、C1-C6のアルキル基、ハロアルキル基、アルコキシハロアルキル基、アルコキシ基、ハロアルコキシ基、ハロアルキルチオ基等;R2はH、ハロゲン原子、C1-C6のアルキル基、C3-C6のシクロアルキル基、C1-C6のハロアルキル基等;R3はH、C1-C6のアルキル基、C1-C6のアルコキシ基置換のC1-C6のアルキル基、C3-C6のシクロアルキル基置換のC1-C6のアルキル基、C2-C6のアルケニル基、C2-C6のアルキニル基、C3-C6シクロアルキル基、C1-C6のハロアルキル基等;nは0~3の整数;隣接する2つのR1が一緒になって、ベンゼン環又はピリジン環と共に縮合環を形成してもよい〕【選択図】なし
