METHOD FOR PRODUCING ACYLOXYPYRANONE COMPOUND, METHOD FOR PRODUCING ALKYNE COMPOUND, AND METHOD FOR PRODUCING DIHYDROFURAN COMPOUND
申请人:Nissan Chemical Industries, Ltd.
公开号:EP2557177A1
公开(公告)日:2013-02-13
An acylating agent and a hydrolase are caused to act on a hydroxypyranone represented by formula (I) in a water-containing organic solvent, to thereby produce an acyloxypyranone compound represented by formula (II) (wherein R1 represents an acyl group). Then, an acetylene organic metal compound represented by formula (III) (wherein R2 represents a hydrogen atom or a tri-substituted silyl group, and M represents an alkali metal atom, aluminum, or a magnesium monohalide) and a coordinating additive are caused to act on the acyloxypyranone compound represented by formula (II), to thereby produce an alkyne compound represented by formula (IV). The alkyne compound represented by formula (IV) is hydrolyzed with acid, to thereby produce a dihydrofuran compound represented by formula (V).
在含水有机溶剂中,使酰化剂和水解酶作用于式(I)代表的羟基吡喃酮,从而生成式(II)代表的酰氧基吡喃酮化合物(其中 R1 代表酰基)。然后,使式(III)代表的炔类有机金属化合物(其中 R2 代表氢原子或三取代硅基,M 代表碱金属原子、铝或一卤化镁)和配位添加剂作用于式(II)代表的酰氧基吡喃酮化合物,从而生成式(IV)代表的炔类化合物。式(IV)代表的炔化合物用酸水解,从而生成式(V)代表的二氢呋喃化合物。