A fluorinated pyrimidine compound represented by general formula (1a) or (1b). (In general formulae (1a) and (1b), R1 represents a hydrocarbon group having 1 to 12 carbon atoms; R2 represents a halogen atom, a hydrocarbon group having 1 to 10 carbon atoms, -CnF2n+1 (wherein n represents an integer of 1 to 10), a nitro group, a boronic acid group, a cyano group, -OA1, -OlSOmA1 (wherein l represents an integer of 0 to 1, and m represents an integer of 0 to 3), -NA1A2, -OlCOOA1 (wherein l represents an integer of 0 to 1), or -OlCONA1A2 (wherein l represents an integer of 0 to 1); A1 and A2 independently represent a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms; Al and A2 may be bound to each other to form a cyclic structure, in which, when there are a plurality of R2’s, they may be the same as or different from each other; and the ring Z represents a 5-membered aromatic heterocyclic ring containing one oxygen atom and one or more nitrogen atoms.)