tribromo-(2,4,6-trimethylphenyl)stannane | 144650-40-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: tribromo-(2,4,6-trimethylphenyl)stannane
• CAS: 144650-40-8
• 化学式: C₉H₁₁Br₃Sn
• 分子量: 477.608
• InChiKey: UGWLPGNCSAFXTK-UHFFFAOYSA-K

物化性质

• 沸点：
  342.7±52.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.94
• 重原子数：
  13.0
• 可旋转键数：
  1.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  dibromo-bis(2,4,6-trimethylphenyl)stannane 、 dimesityltin dichloride 、 Bromo(chloro)bis(2,4,6-trimethylphenyl)stannane 、 四氯化锡 以 neat (no solvent) 为溶剂， 生成 trichloro(mesityl)stannane 、 dibromo-chloro-(2,4,6-trimethylphenyl)stannane 、 tribromo-(2,4,6-trimethylphenyl)stannane 、 bromo-dichloro-(2,4,6-trimethylphenyl)stannane
  参考文献：
  名称：

  Sterically hindered organotin compounds

  摘要：

  Reaction of mesityllithium with SnCl4 (2:1) gives (mesityl)2SnCl2, While the corresponding reaction using mesitylmagnesium bromide gives a mixture of halogenato-products (MeSityl)2SnCl2, (mesityl)2SnBr2 and (mesityl)2SnClBr. Reaction of this latter mixture with SnCl4 (1:1) gives the full range of (mesityl)SnXnY3-n (X = Cl, Y = Br). In contrast, the more sterically demanding carbanion source 2,4,6-iPr3C6H2Li reacts with SnCl4 or SnBr4 (1:1) to give the coupled ditin product (2,4,6-iPr3C6H2)4Sn2(hal)2. The structure of the bromide, [(2,4,6-iPr3C6H2)4Sn2Br2] (Sn-Sn) has been determined and shown to consist of molecular units in an approximately staggered conformation, with an Sn-Sn distance of 2.841(1) angstrom. The molecule is highly sterically congested, leading to non-equivalence of methyl groups in some isopropyl units owing to hindered rotation about C-C and C-Sn bonds.

  DOI：

  10.1016/0022-328x(92)83397-z