| 256393-91-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• CAS: 256393-91-6
• 化学式: C₈H₂₀O₂Sn
• 分子量: 266.956
• InChiKey: WUAKCSGXPAPWBH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.06
• 重原子数：
  11.0
• 可旋转键数：
  8.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.46
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  Dichloro-bis(3-methoxypropyl)stannane 、 lithium aluminium tetrahydride 在 正戊烷 作用下， 以 乙醚 为溶剂， 以69%的产率得到
  参考文献：
  名称：

  Evidence for new surface organotin and germanium complexes with functional groups grafted at the surface of Pt and Rh

  摘要：

  It has been previously demonstrated that reaction of organometallic compounds with group VIII metallic surfaces can lead to grafted organometallic fragments with well defined structures, The presence of remaining alkyl groups on the catalytic surface was demonstrated by various physical and chemical techniques (EXAFS, Magnetic measurements, I.R. spectroscopy, Mossbauer, Thermoreduction, etc.). Surface organometallic complexes with an average formula M-s[M'R-x](y) (M = Ph, Pt, Ni; M' = Sn, Ge, Si, Se; R = Me, Et, Bu) were proposed. The impact of the presence of these alkyl groups on the selectivity and activity for various catalytic reactions is a subject of important investigations. in this work, we demonstrate that organometallic fragments with functional groups can also be grafted on a platinum or rhodium surface. We will describe the synthesis of RxM'R-4-x(f) (M' = Sn or Ge; R = H or Bu and R-f=(CH2)(3)OH, (CH2)(3)OMe, (CH2)(3)O(CH2)(2)O(CH2)(2)OMe, or (CH2)(4)OH) and the kinetics of the reaction under atmospheric pressure of hydrogen with the silica supported platinum or rhodium catalysts. In every case, the hydrogenolysis of the organometallic complexes is not total and some organometallic fragments with functional groups remain on the surface. With R-f = (CH2)(3)OH, M = Rh, M' = Sn, on average, the grafted organometallic fragment can be formulated as: Rh-5[SnBu0.4R0.4f](y)/SiO2. With R-f= (CH2)(3)O(CH2)(2)O(CH2)(2)OMe, M = Rh, Pt, M' = Sn, on average, the grafted organometallic fragment can be formulated as: Pt-s[SnBu0.6R0.5f](0.43)/SiO2 or Rh-s[SnR0.6f](0.6)/SiO2. With(CH2)(3)OMe, M = Rh, Pt, M' = Sn, there is formation of a grafted organometallic fragment which can be formulated on average as: Rh-s[HxSnR0.9f](0.9)/SiO2 and Pt-s[HxSnR1.2f](0.9)/SiO2. With R-f = (CH2)(4)OH, M = Rh, Pt, M' = Ge, an average formula can be obtained as: Pt-s[Ge(H)(x)R-1(f)](0.6)/SiO2, Rh-s[Ge(H)(x)R-0.9(f)](0.6)/SiO2. Catalytic properties of these new material is under investigation. (C) 1999 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(99)00281-2