| 433734-07-7

• CAS: 433734-07-7
• 化学式: C₁₃H₂₄ClN₂Ta
• 分子量: 424.748
• InChiKey: SGGDVKSMEPJTOG-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  CpTa(NtBu)Cl2 、 叔丁胺 以 甲苯 为溶剂， 以86%的产率得到
  参考文献：
  名称：

  Role of Trace Amine in the Metathesis of Imines by CpTa(NR)Cl₂

  摘要：

  Tantalum imido compound CpTa(=NBut)Cl-2 (1) reacts with imines to give NR exchange (metathesis) products. Addition of < 5 mol % of compound I to a 1: 1 mixture of two different imines resulted in catalytic cross metathesis of the two imines to give an equilibrium mixture of imines. Kinetic studies of the reaction of I with excess imine (Bu-t)HC=N(p-tolyl) (2a) gave an average k(obs) of 1.29 x 10(-1) min(-1) (sigma 0.28). Pseudo-first-order behavior was observed for 1. The dependence of k(obs) on the concentration of 2a was found to be nonlinear and dependent on catalytic amounts of contaminant amine p-tolylamine (9). Reaction of 1 with tert-butylamine 6) results in the formation of the imide/amide CpTa(=NBut)(NHBut)Cl 7) and HCl. Compound 7 did not react with imines to give exchange products, so it is proposed that the reaction of 1 with imines is significantly accelerated by the presence of HCl.

  DOI：

  10.1021/om011085v