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    • 68. 发明专利
    • DE60001901D1
    • 2003-05-08
    • DE60001901
    • 2000-01-31
    • BASELL POLYOLEFINE GMBH
    • RESCONI LUIGI
    • C07F7/00C07F7/28C08F4/60C08F10/00
    • A new process, particularly simple, convenient and practical, for the direct synthesis of organometallic compounds of formula(I):wherein (ZR1m)n is a divalent group bridging A and A'; A and A' re independently -O-, -S-, or -N(R2)-, wherein R2 is hydrogen, alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl; M is a transition metal belonging to group 3, 4, 5, 6 or to the lanthanide or actinide groups; L is a monoanionic sigma ligand, such as alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl, optionally containing Si or Ge; L' is halogen or -OR3, R3 being an hydrocarbon radical; m is 0, 1 or 2; n is 1-8; p is 1-3; q is 0-2. Said process comprises reacting the ligand (H-A)(ZR1m)n(A'-H) with about 1 molar equivalent of ML's in the presence of about (2+p) molar equivalents of LjB or LMgL', wherein B is an alkaline or alkaline-earth metal, s ranges from 3 to 6, and j is 1 or 2.