Process for producing pyridine derivative through reaction of azametallacyclopentadiene with alkyne
申请人:Japan Science & Technology Corporation
公开号:US06365744B1
公开(公告)日:2002-04-02
A process for producing a pyridine derivative, which comprises reacting an azametallacyclopentadiene represented by formula (1) with an alkyne in an organic solvent containing a complex of a transition metal such as Ni(II).
(In formula (1), M represents an early transition metal, e.g., Zr, Ti or Hf; L represents cyclopentadienyl, indenyl, fluorenyl, hydrocarbon-oxy, amide, acetylacetonato, or carboxy group, a phosphine ligand, an amine ligand, an ether ligand, or a ligand comprising two or more these bonded to each other through appropriate crosslinking group; n is an integer of 1 to 4; and R1, R2, R3, R4 and R5 each represents C1-20 (substituted) alkyl, alkenyl, an aromatic group, silyl, alkoxy, or an ester group.)
一种生产吡啶衍生物的方法,包括将式(1)表示的氮杂环戊二烯金属配合物与一种含有过渡金属配合物(例如Ni(II))的有机溶剂中的炔烃反应。(在式(1)中,M代表早期过渡金属,例如Zr,Ti或Hf;L代表环戊二烯基,茚基,芴基,碳氧化物,酰乙酰基,羧基,膦配体,胺配体,醚配体或包含两个或更多这些配体的配体,通过适当的交联基彼此连接;n为1至4的整数;R1,R2,R3,R4和R5分别表示C1-20(取代)烷基,烯基,芳香基,硅烷基,烷氧基或酯基。)