PRODUCTION INTERMEDIATE OF TETRAHYDROPYRAN COMPOUND

PROBLEM TO BE SOLVED: To provide an industrially useful production intermediate of a tetrahydropyran derivative capable of providing the tetrahydropyran derivative with high yield and high selectivity without using highly toxic reagents.SOLUTION: There are provided a compound represented by the structure formula (3) and a compound represented by the structure formula (4). (3) (4), Rand Rrepresent each independently a hydrogen atom, a straight, branched or cyclic alkyl group or an aromatic group which may have a substituent, Rand Rmay form a ring by binding to form an alkylene group, Rand Rrepresent each independently a hydrogen atom or a linear, branched or cyclic alkyl group, and Rand Rmay form a ring by binding to form an alkylene group.