Phosphine compounds, complexes containing the phosphine compounds as ligands, process for producing optically active aldehydes using the phosphine compounds, or complexes, and 4-[(R)-1' formylethyl]azetidin-2-one derivatives
申请人:Takasago International Corporation
公开号:EP0614903A2
公开(公告)日:1994-09-14
Novel phosphine compounds are represented by formulae (I) and (II):
wherein the R substituents have the significations defined in the specification and are useful in the form of their transition metal complexes, or of compounds with transition metals, in producing an optically active aldehyde by hydroformylation of an olefin with high positional and steric selectivities. A 4-[(R)-1'-formylethyl]azetidin-2-one derivative obtainable by the process is particularly useful as an intermediate for the preparation of carbapenem antibiotics.
新颖的膦化合物由式 (I) 和 (II) 表示:
其中 R 取代基具有说明书中定义的含义,以其过渡金属络合物或与过渡金属的化合物的形式,通过烯烃的氢甲酰化生产光学活性醛,具有高位置选择性和立体选择性。通过该工艺获得的 4-[(R)-1'-甲酰基乙基]氮杂环丁烷-2-酮衍生物尤其可用作制备碳青霉烯类抗生素的中间体。