| abstract |
(57) [Summary] [Structure] Formula [I] [In the formula, Ar represents an optionally substituted phenyl group or an optionally substituted pyridyl group, n is 0 or 1, and R 1 is a hydrogen atom, a halogen atom or a lower alkyl group, R 2 is a hydrogen atom, a lower alkyl group or a lower alkylthio group, X is —N (R 4 ) —, O or S, and R 3 is — (C HR 5 ) m -A 1 ,-(CHR 6 ) k -OA 2, etc., m and k are 1, 2 and A 1 and A 2 are an optionally substituted phenyl group or an optionally substituted pyridyl group, and R 4 represents a hydrogen atom, a lower alkyl group or a lower alkoxy group, and R 5 and R 6 represent a hydrogen atom or a lower alkyl group. ] The pyrimidine derivative represented by these. [Effect] It shows an excellent pest control effect. |