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[tris(dimethylsilyl-d)methyl]potassium | 1426156-56-0

中文名称
——
中文别名
——
英文名称
[tris(dimethylsilyl-d)methyl]potassium
英文别名
——
[tris(dimethylsilyl-d)methyl]potassium化学式
CAS
1426156-56-0
化学式
C7H21KSi3
mdl
——
分子量
231.575
InChiKey
XZMPEDYENRQNGD-ZHUBKZETSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    1.39
  • 重原子数:
    11.0
  • 可旋转键数:
    3.0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    0.0
  • 氢给体数:
    0.0
  • 氢受体数:
    0.0

反应信息

  • 作为反应物:
    描述:
    CeI3(THF)4[tris(dimethylsilyl-d)methyl]potassium 为溶剂, 以88.2%的产率得到Ce{C(SiDMe2)3}3
    参考文献:
    名称:
    均三价三(烷基)稀土化合物
    摘要:
    由LnI 3 THF n和3 equiv高收率合成同质三(烷基)稀土配合物Ln {C(SiHMe 2)3 } 3(Ln = La,1a ; Ce,1b ; Pr,1c ; Nd,1d)的KC(SiHMe 2)3。X射线衍射研究表明1a - d是同构的伪C 3对称分子,每个烷基配体包含两个次级Ln↼HSi相互作用(总共六个)。与Ln {C(SiDMe 2)3 }比较可支持光谱分配3和DFT计算。Ln↼HSi和末端SiH在室温下在NMR时间尺度上快速交换,但两个基序在低温下可分辨。变温NMR研究提供用于交换过程激活参数在1A(Δ ħ ⧧ = 8.2(4)千卡·摩尔-1 ;Δ小号⧧ = -1(2)卡·摩尔-1 ķ -1)和1A〜d 9(Δ ħ ⧧ = 7.7(3)千卡·摩尔-1 ;Δ小号⧧ = -4(2)卡·摩尔-1 ķ -1)。线形比较,速率常数(k H/ ķ d),和ln(斜率ķ / Ť)与1
    DOI:
    10.1021/jacs.7b09521
  • 作为产物:
    描述:
    Bis[deuterio(dimethyl)silyl]methyl-deuterio-dimethylsilane 在 benzyl potassium 作用下, 以 四氢呋喃 为溶剂, 反应 12.0h, 以86.7%的产率得到[tris(dimethylsilyl-d)methyl]potassium
    参考文献:
    名称:
    Intermolecular β-Hydrogen Abstraction in Ytterbium, Calcium, and Potassium Tris(dimethylsilyl)methyl Compounds
    摘要:
    A series of organometallic compounds containing the tris(dimethylsilyl)methyl ligand are described. The potassium carbanions KC(SiHMe2)(3) and {KC(SiHMe2)(3)-TMEDA}(2) are synthesized by deprotonation of the hydrocarbon HC(SiHMe2)(3) with potassium benzyl. {KC(SiHMe2)(3)-TMEDA}(2) crystallizes as a dimer with two types of three-center-two-electron K-H-Si interactions: side-on coordination of SiH (angle K-H-Si = 102(2)degrees) and more obtuse K-H-Si structures (angle K-H-Si approximate to 150 degrees). The divalent calcium and ytterbium compounds M{C(SiHMe2)(3)}(2)L (M = Ca, Yb; L = 2THF, TMEDA) are prepared from MI2 and 2 equiv of KC(SiHMe2)(3). Low (1)J(SiH) coupling constants in the NMR spectra, low-energy nu(SiH) bands in the IR spectra, and short M-Si distances and small M-C-Si angles in the crystal structures suggest beta-agostic interactions on each C(SiHMe2)(3) ligand. The IR assignments of M{C(SiHMe2)(3)}(2)L (L = 2THF, TMEDA) are supported by DFT calculations. The compounds M{C(SiHMe2)(3)}(2)L react with 1 or 2 equiv of B(C6F5)(3) to give the 1,3-disilacyclobutane {Me2SiC(SiHMe2)(2)}(2) and MC(SiHMe2)(3)HB(C6F5)(3)L or M{HB(C6F5)(3)}(2)L, respectively. In addition, M{C(SiHMe2)(3)}(2)L compounds react with BPh3 to give beta-H abstracted products. The compounds M{C(SiHMe2)(3)}(2)THF2 react with SiMe3I to yield Me3SiH and disilacyclobutane as the products of beta-H abstraction, while M{C(SiHMe2)(3)}(2)TMEDA and Me3SiI form a mixture of Me3SiH and the alkylation product Me3SiC(SiHMe2)(3) in a 1:3 ratio.
    DOI:
    10.1021/om3010299
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文献信息

  • POLYMERIZATION CATALYSTS
    申请人:Iowa State University Research Foundation, Inc.
    公开号:US20170275402A1
    公开(公告)日:2017-09-28
    The present invention relates to processes for polymerizing unsaturated hydrocarbon monomers. The present invention also relates to a precatalyst having the structure of Formula (I): MC(SiHAlk 2 ) 3 } 3 (I), and to a catalyst comprising the structure of Formula (II): MC(SiHAlk 2 ) 3 X 2 (II), and methods for preparation thereof.
    本发明涉及聚合不饱和碳氢单体的过程。本发明还涉及具有结构式(I):MC(SiHAlk2)3}3的前催化剂,以及包含结构式(II):MC(SiHAlk2)3X2的催化剂,以及其制备方法。
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