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    • 3. 发明公开
    • Ruthenium-phosphine complexes
    • 钌 - 膦配合物
    • EP0366390A3
    • 1990-07-04
    • EP89310901.7
    • 1989-10-23
    • Takasago International Corporation
    • Takaya, HidemasaMashima, KazushiKumobayashi, HidenoriSayo, Noboru
    • C07F15/00C07B53/00C07C67/31
    • B01J31/2452B01J2231/641B01J2231/643B01J2531/0266B01J2531/821C07C51/36C07C67/31C07F15/0053
    • A ruthenium-phosphine complex is of formula
      [RUX ℓ (L) m (R-BINAP)]Y n       (I)
      wherein R-BINAP represents a tertiary phosphine represented by
      wherein R represents a hydrogen atom or a methyl group; X represents a halogen atom; L represents substituted or unsubstituted benzene or acetonitrile; Y represents a halogen atom, ClO₄, PF₆, BPh₄ (wherein Ph represents a phenyl group) or BF₄; when L is substituted or unsubstituted benzene, ℓ represents 1, m represents 1, and n represents 1; and when L is acetonitrile, when ℓ is 1, then m represents 2, and n represents 1, and when ℓ is 0, then m represents 4, and n represents 2. 27 specific complexes are shown. Synthesis is by
      (a) RuCl₂(Ar) + BINAP in a solvent at 25 to 50°C; (b) [RuCl₂ (Ar)]₂ + Br or I salt of Li, Na or K, in water or in a mixture of water and methylene chloride and in pre­sence of a quaternary ammonium or phosphonium halide; (c) [RuCl(Ar) BINAP]Cl + a Na, K, Li, Mg or Ag salt (MY); of ClO₄, PF₆ BPh₄ or BF ₄ , in an organic solvent; or (d) [RuCl(Ar) BINAP]Cl in an organic solvent, optionally with MY is heated at 25°C-50°C for 10-24 hours. The complex is used as catalyst in asymmetric hydrogenation, e.g. of methyl acetoacetate, and exhibits excellent catalytic activity to provide a product of high optical purity.
    • 钌 - 膦配合物具有式[RUXl(L)m(R-BINAP)] Yn(I)其中R-BINAP代表叔膦,其中R代表氢原子或甲基; X代表卤素原子; L表示取代或未取代的苯或乙腈; Y代表卤原子,ClO 4,PF 6,BPh 4(其中Ph代表苯基)或BF 4; 当L是取代或未取代的苯时,l代表1,m代表1,n代表1; 当L为乙腈时,当l为1时,m代表2,n代表1,当l为0时,m代表4,n代表2.27个特定的配合物。 合成通过(a)RuCl 2(Ar)+ BINAP在25-50℃的溶剂中进行; (b)在水中或在水和二氯甲烷的混合物中,在季铵或卤化鏻存在下,[RuCl 2(Ar)] 2 + Br或I的Li,Na或K的盐; (c)[RuCl(Ar)BINAP] Cl + Na,K,Li,Mg或Ag盐(MY); ClO 4,PF 6 BPh 4或BF 4在有机溶剂中的溶液; 或(d)[RuCl(Ar)BINAP] Cl在有机溶剂中,任选与MY在25℃-50℃加热10-24小时。 该配合物在不对称氢化中用作催化剂,例如, 的乙酰乙酸甲酯,并且表现出优异的催化活性以提供高光学纯度的产物。