meso-1,3,4,4,5,7,8,8-octamethyl-8-sila-4-stanna-tetrahydro-s-indacene | 182139-67-9

• 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: meso-1,3,4,4,5,7,8,8-octamethyl-8-sila-4-stanna-tetrahydro-s-indacene
• 英文别名: meso-1,2,4,4,5,7,8,8-octamethyl-4-stanna-8-silatetrahydro-s-indacene；2,2,4,6,8,8,10,12-octamethyl-2-sila-8-stannatricyclo[7.3.0.03,7]dodeca-1(12),3,5,10-tetraene
• CAS: 182139-67-9
• 化学式: C₁₈H₂₈SiSn
• 分子量: 391.216
• InChiKey: QSZMPGIRDNHVEL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.79
• 重原子数：
  20
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  meso-1,3,4,4,5,7,8,8-octamethyl-8-sila-4-stanna-tetrahydro-s-indacene 、 氯化锆(IV) 以 甲苯 为溶剂， 生成 、
  参考文献：
  名称：

  Substituted Silastannatetrahydro-s-indacenes as Cyclopentadienyl Transfer Agents in the Synthesis of Silanediyl-Bridged Zirconocene Complexes¹

  摘要：

  The substituted silastannatetrahydro-s-indacenes meso-Me(2)Si(t-BuC(5)H(3))(2)SnMe(2), meso-Me(2)Si(Me(2)C(5)H(2))(2)SnMe(2), and meso-Me(2)Si(Me-i-PrC5H2)(2)SnMe(2), prepared from the corresponding silanediyl-bridged dicyclopentadienide dilithium salts by reaction with Me(2)SnCl(2), were structurally characterized by X-ray diffraction and by H-1-NMR in solution. These cyclic stannanediyl compounds react with ZrCl4 to give selectively the meso diastereomers of the ansa-zirconocene complexes Me(2)Si(3-t-BuC(5)H(3))(2)ZrCl2, Me(2)Si(2,4-Me(2)C(5)H(2))(2)ZrCl2, and Me(2)Si(2-Me-4-i-PrC5H2)(2)ZrCl2, respectively. Reaction of Me(2)Si(2-Me-4-t-BuC(5)H(2)(-) Li+)(2) with Me(2)SnCl(2) gives, instead of Me(2)Si(Me-t-BuC(5)H(2))(2)SnMe(2), the distannyl derivative Me(2)Si(2-Me-4-t-BuC(5)H(2)-1-SnMe(2)Cl)(2). This compound reacts with ZrCl4 to give a 1:1 mixture of the rac and meso isomers of Me(2)Si(2-Me-4-t-BuC(5)H(2))(2)ZrCl2. Ring-opened, racemic distannyl compounds are formed also from meso-Me(2)Si(t-BuC(5)H(3))(2)SnMe(2), meso-Me(2)Si(Me(2)C(5)H(2))(2)SnMe(2), and meso-Me(2)Si(Me-i-PrC5H2)(2)SnMe(2) with excess Me(2)SnCl(2). Competition between Me(2)SnCl(2) and Zr centers for reaction with stannylcyclopentadiene units appears to limit the overall stereoselectivity of the ansa-zirconocene complex formation.

  DOI：

  10.1021/om960305f
• 作为产物：
  描述：

  dimethylbis(2,4-dimethylcyclopentadienyl)silane 、 bis(diethylamino)dimethyltin 以 乙醚 为溶剂， 以45%的产率得到meso-1,3,4,4,5,7,8,8-octamethyl-8-sila-4-stanna-tetrahydro-s-indacene
  参考文献：
  名称：

  8-sila-4-stanna- s-四氢茚并酮作为Me 2 Si桥接锆茂的合成子：由双环戊二烯基硅烷与氨基锡烷反应形成

  摘要：

  烷基取代的双（环戊二烯基）dimethylsilanes与我反应2的Sn（NET 2）2，并用（ME 2 N）4的Sn，得到相应substituiertem，内消旋-构型RS -8-硅杂-4- stanna-小号-tetrahydroindacene和轴向对称RR，SS -4-螺双（8-羟基硅杂-4- stanna-小号-tetrahydroindacene）化合物分别哪些是立体选择性地通过与转化的ZrCl 4为相应的内消旋-和外消旋-构型袢-zirconocene络合物。

  DOI：

  10.1016/s0022-328x(02)01775-8

文献信息

• Substituted Silastannatetrahydro-<i>s</i>-indacenes as Cyclopentadienyl Transfer Agents in the Synthesis of Silanediyl-Bridged Zirconocene Complexes¹
  作者：Mario Hüttenhofer、Marc-Heinrich Prosenc、Ursula Rief、Frank Schaper、Hans-Herbert Brintzinger

  DOI：10.1021/om960305f

  日期：1996.10.29

  The substituted silastannatetrahydro-s-indacenes meso-Me(2)Si(t-BuC(5)H(3))(2)SnMe(2), meso-Me(2)Si(Me(2)C(5)H(2))(2)SnMe(2), and meso-Me(2)Si(Me-i-PrC5H2)(2)SnMe(2), prepared from the corresponding silanediyl-bridged dicyclopentadienide dilithium salts by reaction with Me(2)SnCl(2), were structurally characterized by X-ray diffraction and by H-1-NMR in solution. These cyclic stannanediyl compounds react with ZrCl4 to give selectively the meso diastereomers of the ansa-zirconocene complexes Me(2)Si(3-t-BuC(5)H(3))(2)ZrCl2, Me(2)Si(2,4-Me(2)C(5)H(2))(2)ZrCl2, and Me(2)Si(2-Me-4-i-PrC5H2)(2)ZrCl2, respectively. Reaction of Me(2)Si(2-Me-4-t-BuC(5)H(2)(-) Li+)(2) with Me(2)SnCl(2) gives, instead of Me(2)Si(Me-t-BuC(5)H(2))(2)SnMe(2), the distannyl derivative Me(2)Si(2-Me-4-t-BuC(5)H(2)-1-SnMe(2)Cl)(2). This compound reacts with ZrCl4 to give a 1:1 mixture of the rac and meso isomers of Me(2)Si(2-Me-4-t-BuC(5)H(2))(2)ZrCl2. Ring-opened, racemic distannyl compounds are formed also from meso-Me(2)Si(t-BuC(5)H(3))(2)SnMe(2), meso-Me(2)Si(Me(2)C(5)H(2))(2)SnMe(2), and meso-Me(2)Si(Me-i-PrC5H2)(2)SnMe(2) with excess Me(2)SnCl(2). Competition between Me(2)SnCl(2) and Zr centers for reaction with stannylcyclopentadiene units appears to limit the overall stereoselectivity of the ansa-zirconocene complex formation.
• 8-Sila-4-stanna-s-tetrahydroindacenes as synthons for Me2Si-bridged zirconocenes: formation from biscyclopentadienyl silanes by reaction with aminostannanes
  作者：Mario Hüttenhofer、Frank Schaper、Hans-Herbert Brintzinger

  DOI：10.1016/s0022-328x(02)01775-8

  日期：2002.10

  Alkyl-substituted bis(cyclopentadienyl)dimethylsilanes react with Me2Sn(NEt2)2 and with (Me2N)4Sn to yield correspondingly substituted, meso-configurated RS-8-sila-4-stanna-s-tetrahydroindacene and axially symmetric RR,SS-4-spiro-bis(8-sila-4-stanna-s-tetrahydroindacene) compounds, respectively, which are stereoselectively converted by reaction with ZrCl4 to the corresponding meso- and rac-configurated

  烷基取代的双（环戊二烯基）dimethylsilanes与我反应2的Sn（NET 2）2，并用（ME 2 N）4的Sn，得到相应substituiertem，内消旋-构型RS -8-硅杂-4- stanna-小号-tetrahydroindacene和轴向对称RR，SS -4-螺双（8-羟基硅杂-4- stanna-小号-tetrahydroindacene）化合物分别哪些是立体选择性地通过与转化的ZrCl 4为相应的内消旋-和外消旋-构型袢-zirconocene络合物。