[(CO)2(3,5-Me2-4-(i-PrNHCH2)pyrazolato)Rh]2 | 306747-97-7

• 英文名称: [(CO)2(3,5-Me2-4-(i-PrNHCH2)pyrazolato)Rh]2
• CAS: 306747-97-7
• 化学式: C₂₂H₃₂N₆O₄Rh₂
• 分子量: 650.345
• InChiKey: JIMLJMMQHPAUBW-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  [(1,5-cyclooctadiene)(3,5-Me2-4-(i-PrNHCH2)pyrazolato)Rh]2*0.5CHCl3 、 一氧化碳 在 H₂ 作用下， 以 二氯甲烷 为溶剂， 生成 [(CO)2(3,5-Me2-4-(i-PrNHCH2)pyrazolato)Rh]2
  参考文献：
  名称：

  Synthesis and reactivity of 3,5-dimethyl-4-aminomethylpyrazole ligands. An entry to new water-soluble pyrazolate rhodium(I) complexes

  摘要：

  The new pyrazoles 3,5-dimethyl-4-(ethylamino)methylpyrazol (HL1) and 3,5-dimethyl-4-(isopropylamino)methylpyraxole(HL2), both containing aminoalkyl groups at position 4 have been prepared by aminoalkylation of 3,5-dimethylpyrazole and by the reaction between 1-chloromethyl-3,5-dimethylpyrazolium chloride and NH2R amines. The reaction between HL1, HL2 and [RhCl(COD)](2) resulted in complexes of formula [Rh-2(HL1)(2)(COD)(2)]Cl-2 (1) and [Rh-2(HL2)(2)(COD)(2)]Cl-2 (2), which contained the pyrazole ligands in the 'zwitterionic' pyrazolate-ammonium forms. The X-ray structure analysis of 2 confirmed the neutral nature of bridging-pyrazolate ligands and revealed that 1 and 2 belonged to the [Rh-2(Pz)(2)L-2] family of compounds. The same reaction with two equivalents of NaOMe resulted in neutral pyrazolate complexes [Rh-2(L-1)(2)(COD)(2)] (5) and [Rh-2(L-2)(2)(COD)(2)] (6). The reaction between both cationic and neutral pyrazolate complexes and a 1:1 CO-H-2 mixture (20 atm) led to the dinuclear pyrazolate-bridged tetracarbonyl compounds 3, 4, 7 and 8 in good yields. Tetracarbonyl complexes 3 and 4 were not isolated in pure state. All the complexes synthesized are soluble in polar solvents such as water. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(00)00317-x