KARSTEDT催化剂 | 81032-58-8

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 中文名称: KARSTEDT催化剂
• 英文名称: Karstedt catalyst
• 英文别名: bis(1,3-divinyl-1,1,3,3,-tetramethyldisiloxane)Pt(0)；bis(η2:η2-1,3-divinyltetramethyl)platinum(0)；playinum(divinyltetramethyldisiloxane)2；Karstedt's catalyst；platinum(0)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex；platinum (0) divinyltetramethyldisiloxane complex；platinum-divinyl-tetramethyldisiloxane complex；platinum-divinyltetramethylsiloxane complex；Karstedt's platinum complex；platinum (+/-)-1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex；Pt(0) divinyltetramethyldisiloxane；ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane;platinum
• CAS: 81032-58-8；166769-49-9
• 化学式: C₁₆H₃₆O₂PtSi₄
• 分子量: 567.883
• InChiKey: JTSZXOTUXGOAJS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.72
• 重原子数：
  23
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

制备方法与用途

乙烯基聚硅氧烷与含氢聚硅氧烷的加成反应催化剂，广泛应用于加成型硅橡胶、硅凝胶、液体硅胶、阻燃胶、乙烯基环体、加成型纸张隔离剂以及有机硅涂料等生产过程中，是不可或缺的重要催化剂。

反应信息

• 作为产物：
  描述：

  Karstedt's catalyst 、 四甲基二乙烯基二硅氧烷 以 氘代甲苯 为溶剂， 生成 KARSTEDT催化剂
  参考文献：
  名称：

  The reaction pathway from Speier's to Karstedt's hydrosilylation catalyst

  摘要：

  Multinuclear, variable temperature NMR spectroscopic experiments show that: (i) treatment of [{Pt(LL)}(2)(mu-LL)], 1, with an 2 excess of (CH2=CHSiMe(2))(2)O (=LL) yields [Pt(LL)(LL)], 2; (ii) treatment of 1 with PhCH=CH2 gives [Pt(LL)(eta(2)-CH2=CHPh)] 3; and (iii) reaction of cis-[Pt(eta(2)-CH2=CHPh)Cl-2] with LL yields successively 1, 2, and 3. The pathway in the case of (iii) involves initial chloride-vinyl exchange, followed by reductive elimination in which vinyl radicals and vinyl chloride may be involved.

  DOI：

  10.1016/0022-328x(94)05359-j
• 作为试剂：
  描述：

  三(三甲硅烷氧基)硅烷 、 1,4-二氯-2-丁炔 在 KARSTEDT催化剂 作用下， 反应 8.0h， 以70%的产率得到1,4-dichloro-2-but-2-ene
  参考文献：
  名称：

  Siloxanylpyrroline und -pyrrolinium Derivate. Synthese und Charakterisierung

  摘要：

  The synthesis of the title compounds was carried out by hydrosilylation of 1,4-dichlorobut-2-yne (1) with defined siloxanes (2a-c) using a platinum catalyst, followed by the reaction of the received 1,4-dichloro-2-siloxanyl-but-2-enes (3a-c) with primary, secondary and tertiary amines, respectively. N-Alkyl-3-(siloxanyl)pyrrolines (4,5,6) were reacted with alkyl bromides and sultones, respectively. The products were characterized by elemental analysis and C-13-n.m.r.-spectroscopy and posses remarkable surface activity. The X-ray crystal structure of N-ethyl-3-(1,1,1,3,5,5,5-heptamethyltrisiloxan-3-yl) pyrroline hydrochloride was determined.

  DOI：

  10.1002/prac.19943360607

文献信息

• Chandra, Grish; Lo, Peter Y.; Hitchcock, Peter B., Organometallics, 1987, vol. 6, # 1, p. 191 - 192
  作者：Chandra, Grish、Lo, Peter Y.、Hitchcock, Peter B.、Lappert, Michael F.

  DOI：——

  日期：——
• The reaction pathway from Speier's to Karstedt's hydrosilylation catalyst
  作者：Michael F. Lappert、Fiona P.A. Scott

  DOI：10.1016/0022-328x(94)05359-j

  日期：1995.5

  Multinuclear, variable temperature NMR spectroscopic experiments show that: (i) treatment of [Pt(LL)}(2)(mu-LL)], 1, with an 2 excess of (CH2=CHSiMe(2))(2)O (=LL) yields [Pt(LL)(LL)], 2; (ii) treatment of 1 with PhCH=CH2 gives [Pt(LL)(eta(2)-CH2=CHPh)] 3; and (iii) reaction of cis-[Pt(eta(2)-CH2=CHPh)Cl-2] with LL yields successively 1, 2, and 3. The pathway in the case of (iii) involves initial chloride-vinyl exchange, followed by reductive elimination in which vinyl radicals and vinyl chloride may be involved.