METHOD FOR PRODUCING CYCLIC DIKETONE

摘要

PROBLEM TO BE SOLVED: To provide a new method for producing a cyclic 1,3-diketone derivative carbonylated at 2 position. SOLUTION: This method for producing the cyclic 1,3-diketone derivative represented by formula (I) (wherein substituent groups are defined in a claim 1) comprises converting a compound represented by formula (II) to a salt represented by formula (III), reacting the compound (III) with a compound represented by the formula (IV): X-C(O)-Q (wherein X is an eliminable group) to obtain a compound represented by formula (V) and treating the compound (V) with a catalytic amount of a cyanide ion in the presence of a base. COPYRIGHT: (C)2004,JPO