1-methyl-3-propenyl-4,5-dimethylimidazolium bromide | 944559-83-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-methyl-3-propenyl-4,5-dimethylimidazolium bromide
• CAS: 944559-83-5
• 化学式: Br*C₉H₁₅N₂
• 分子量: 231.135
• InChiKey: MVGMEBOBHTYNEJ-UHFFFAOYSA-M

反应信息

• 作为反应物：
  描述：

  bis[dichloro(pentamethylcyclopentadienyl)iridium(III)] 、 六氟磷酸钾 、 1-methyl-3-propenyl-4,5-dimethylimidazolium bromide 在 Ag₂O 作用下， 以 二氯甲烷 为溶剂， 以51%的产率得到
  参考文献：
  名称：

  “Cp*Ir(III)” Complexes with Hemicleaveable Ligands of the Type N-Alkenyl Imidazolin-2-ylidene. Reactivity and Catalytic Properties

  摘要：

  A series of Cp*Ir(III) complexes with N-alkenyl imidazole-2-ylidene ligands have been obtained by transmetalation of the previously obtained silver-carbene species. Two structural and electronic parameters have been modified in the preparation of the NHC ligands: (i) the length of the linker between the azole ring and the terminal alkenyl group, and (ii) the nature of the substituents (H, Cl, CH3) on the backbone of the NHC. Short linkers (N-allyl and N-butenyl) afford bis-chelating species, while the long linker (N-pentenyl) yields the monocoordinated species through the carbene. The structures of four of the new complexes have been characterized by X-ray diffraction. The catalytic activities of the bis-chelating carbene-alkenyl compounds have been tested on the transfer hydrogenation of ketones and imines.

  DOI：

  10.1021/om070188w