dioctylstannane | 15231-44-4

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机过渡后金属化合物
• 英文名称: dioctylstannane
• 英文别名: (octyl)2SnH2；dioctyltin dihydride；di-n-octyltin；dioctyltin；Di-n-octyl-stannan；Di-n-octylstannan；Stannane, dioctyl pound>>Dioctyltin
• CAS: 15231-44-4
• 化学式: C₁₆H₃₆Sn
• 分子量: 347.172
• InChiKey: IFYGUNVJGWHEBO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.71
• 重原子数：
  17
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 海关编码：
  2931900090

反应信息

• 作为反应物：
  描述：

  dioctylstannane 、 二辛基锡 以 not given 为溶剂， 生成 Chlorodioctylstannane
  参考文献：
  名称：

  二有机锡二氢化物与二有机锡二氯化物的一些反应

  摘要：

  DOI：

  10.1016/s0022-328x(00)92659-7
• 作为产物：
  描述：

  二辛基锡 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 生成 dioctylstannane
  参考文献：
  名称：

  Metal-Catalyzed Dehydropolymerization of Secondary Stannanes to High Molecular Weight Polystannanes

  摘要：

  The first high molecular weight polystannanes, H(SnR(2))(n)H (R = (n)Bu, (n)Hex, (n)Oct), result from dehydropolymerization of secondary stannanes R(2)SnH(2) by zirconocene catalysts. Good catalysts include zirconocenes based on both CpCp*Zr (Cp* = eta(5)-C(5)Me(5)) and Cp(2)Zr fragments, and the most active catalyst with respect to production of high molecular weight polystannanes was Me(2)C(eta(5)-C5H4)(2)Zr[Si(SiMe(3))(3)]Me. The latter catalyst produced H(Sn(n)Bu(2))(n)H chains (M(w)/M(n) = 66 900/20 300) that were contaminated by ca. 18% (by weight) low molecular weight cyclic oligomers. Lower molecular weights resulted from dehydropolymerizations of Me(2)SnH(2), PhMeSnH(2), and Ph(2)SnH(2). At room temperature, H(SnR(2))(n)H (R alkyl group) polystannanes have lambda(max) values at ca. 380-400 nm, attributed to sigma --> sigma* transitions. Thermal gravimetric analyses on the polystannanes reveal that these polymers are as thermally stable as related poly(dialkylsilane)s and have onset temperatures for thermal decomposition in the range 200-270 degrees C, under both nitrogen and air. The H(Sn(n)Bu(2))(n)H polymer has been shown to be a good precursor to SnO2, as shown by bulk pyrolysis in air (ceramic yield: 56%). Preliminary results also indicate that these polymers may be useful as precursors to elemental tin. The polystannanes are photosensitive, and their photobleaching behavior has been characterized by UV-vis spectrometry and Sn-119 NMR spectroscopy, which demonstrated that H(Sn(n)Bu(2))(n)H is photochemicaly depolymerized to a 2:1 mixture of cyclo-(Sn(n)Bu(2))(5) and cyclo-(Sn(n)Bu(2))(6). The polymers H(Sn(n)Hex(2))(n)H and H(Sn(n)Oct(2))(n)H exhibit thermochromic behavior which is visibly evident as a discoloration from yellow to colorless upon warming above room temperature. This reversible behavior is associated with an abrupt change in lambda(max) (e.g., from 402 to 378 nm for films of H(Sn(n)Oc(2))(n)H) and a phase change at ca. 40 OC (by differential scanning calorimetry). Thin films of H(Sn(n)Bu(2))(n)H and H(Sn(n)Oct(2))(n)H on glass slides were doped by exposure to SbF5 vapor to conductivities of 10(-2) and 0.3 S cm(-1), respectively. Preliminary experiments suggest that the dehydropolymerization occurs by a sigma-bond metathesis mechanism involving four-center transition states. A previous report on production of high molecular weight poly(dibutylstannane) by the reductive coupling of (n)Bu(2)SnCl(2) by Na/15-crown-5 was reinvestigated and found to produce only low molecular weight material with M(w)/M(n) = 2400/ 1200.

  DOI：

  10.1021/ja00145a001

文献信息

• Novel tin (IV) compounds
  申请人：Rhone-Poulenc Chimie

  公开号：US05051521A1

  公开（公告）日：1991-09-24

  Novel tetracoordinated tin (IV) compounds, well suited as latent catalysts for the preparation of polyurethanes or for the crosslinking of curable diorganopolysiloxanes (upon thermal decomposition thereof into diorganotin dicarboxylates or dialcoholates), have the general formula (1): ##STR1## in which the radicals R, which may be the same or different, are each a linear or branched chain C.sub.1 -C.sub.20 alkyl radical, a mononuclear aryl radical, or an aralkyl or alkaryl radical, the alkyl moieties of which having from 1 to 6 carbon atoms; the radicals R.sub.1 and R.sub.2, which may be the same or different, are each a hydrogen atom, a cyano radical, a C.sub.1 -C.sub.6 alkyl radical, or an alkoxycarbonyl radical, the alkyl moiety of which having from 1 to 6 carbon atoms, with the proviso that R.sub.1 and R.sub.2 may together form a saturated hydrocarbon ring member having from 5 to 8 carbon atoms; the radical R.sub.3 is a hydrogen atom, a linear or branched chain C.sub.1 -C.sub.20 alkyl radical, a linear or branched chain C.sub.1 -C.sub.20 alkoxy radical, a mononuclear aryl radical or a mononuclear aryloxy radical; and a is 0 or 1.

  新型四配位锡（IV）化合物，适用于作为聚氨酯制备的潜在催化剂或用于可固化二有机多硅氧烷的交联（在热分解为二有机锡二羧酸盐或二羟酸盐后），其一般式如下：##STR1## 其中，基团R，可以相同也可以不同，每个都是线性或支链C.sub.1-C.sub.20烷基基团，单核芳基基团，或芳基烷基或烷基基团，其中烷基部分含有1至6个碳原子；基团R.sub.1和R.sub.2，可以相同也可以不同，每个都是氢原子，氰基团，C.sub.1-C.sub.6烷基基团，或烷氧羰基基团，其中烷基部分含有1至6个碳原子，条件是R.sub.1和R.sub.2可以一起形成含有5至8个碳原子的饱和碳氢环成员；基团R.sub.3是氢原子，线性或支链C.sub.1-C.sub.20烷基基团，线性或支链C.sub.1-C.sub.20烷氧基基团，单核芳基或单核芳氧基基团；a为0或1。
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Sn: Org.Verb.4, 1.2.1.1.5.4.7, page 62 - 63
  作者：

  DOI：——

  日期：——
• Schneider, B.; Neumann, W. P., Liebigs Annalen der Chemie, 1967, vol. 707, p. 7 - 14
  作者：Schneider, B.、Neumann, W. P.

  DOI：——

  日期：——
• Une méthode simple et efficace de préparation des dihydrures organotanniques
  作者：H. Deleuze、B. Maillard

  DOI：10.1016/0022-328x(94)05356-g

  日期：1995.3

  A new and efficient method of preparation of R(2)SnH(2) is proposed. Organodioxastannolanes were used as starting materials, these compounds being easily obtained by azeotropic distillation of water from a solution of diorganotin oxides and 1,2 diols in cyclohexane. Their reduction by commercial BH3/THF complex gave raw dialkyltin dihydrides with excellent yields and high purity degrees.
• Air activated organotin catalysts for silicone curing and polyurethane preparation
  作者：Bernard Jousseaume、Nicolas Noiret、Michel Pereyre、Annie Saux、Jean Marc Frances

  DOI：10.1021/om00015a042

  日期：1994.3

  Upon exposure to air, 1,2-bis(acyloxy)tetraalkyldistannanes incorporated in mixtures of either silicone oils and curing agent, or of isocyanates and alcohols, are oxidized to 1,3-bis(acyloxy)tetraalkyldistannoxanes which show excellent catalytic properties for curing silicones or for preparing polyurethanes. Under nitrogen, they induce longer pot-lives than the usual bis(acyloxy)dialkylstannane catalysts. Peralkyl-polycyclostannanes, obtained either by the palladium-catalyzed decomposition of dialkylstannanes or by reduction of dichlorodialkylstannanes with metals, are also very good latent catalysts for silicone curing. When incorporated into reactive mixtures under nitrogen, they do not catalyze the condensation. Upon exposure to air, they are oxidized to active catalysts which cure silicones. These di- or polystannanes can be considered air-activated latent organotin catalysts.