cis-(ClMe2Si)(Me3SiClMeSi)Pt(PEt3)2 | 160631-01-6

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: cis-(ClMe2Si)(Me3SiClMeSi)Pt(PEt3)2
• CAS: 160631-01-6
• 化学式: C₁₈H₄₈Cl₂P₂PtSi₃
• 分子量: 676.769
• InChiKey: VIZFRVTZEDMZPL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.79
• 重原子数：
  26.0
• 可旋转键数：
  11.0
• 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

• 作为产物：
  描述：

  1,3-dichloro-1,1,2,2,3,3-hexamethyltrisilane 、 [Pt(PEt₃)₃] 以 neat (no solvent) 为溶剂， 生成 cis-(ClMe2Si)(Me3SiClMeSi)Pt(PEt3)2
  参考文献：
  名称：

  钯催化的Cl（SiMe2）3Cl与乙炔的钯催化反应中1,4-二硅环己-2,5-二烯的意外形成及其在聚合物合成中的应用

  摘要：

  Cl(SiMe(2))(3)Cl (1a) reacts with 2 equiv of acetylenes RC=CR' for (R, R') = (Ph, H), (Hex, H), (Ph(CH2)(2), H), (NC(CH2)(3), H), (Ph, Me), and (Ph, Ph) in the presence of palladium catalysts at 120-140 degrees C to give 1,4-disilacyclohexa-2,5-dienes in 82-20% yields along with the coproduct Me(2)SiCl(2). Terminal acetylenes exhibit higher reactivities than internal acetylenes. PdCl(2)L(2) catalysts with L = P(aryl)(3) or AsPh(3) are efficient, while those with L = P(alkyl)(3) or PhCN are not effective. Use of X(SiMe(2))(3)X (X = F, OMe) in place of la produces very little 1,4-disilacyclohexa-2,5-diene. Possible involvement of silylene species in the catalysis is suggested by the reaction of la with Pt(PEt(3))(3), which gives cis-(CIMe(2)Si)(Me(3)SiClMeSi)Pt-(PEt(3))(2) (9), presumably via silyleneplatinum intermediates, and by the generation of dimethylsilylene in the thermolysis of 9. Complex 9 is alternatively obtained in the reaction of ClMe(2)SiSiClMeSiMe(3) with Pt(PEt(3))(3). Reaction of la with m-diprop-1-yn-1-ylbenzene gives a regular silicon polymer of low molecular weight consisting of alternating 1,4-disilacyclohexa-2,5-dien-2,5- or -2,6-ylene and m-phenylene units, most of the termini being 1,2-bis(chlorodimethylsilyl)ethenyl groups. Similar reactions with p- and m-diethynylbenzene also give silicon polymers that contain 1,4-disilacyclohexa-2,5-dienylene and phenylene rings in the backbone.

  DOI：

  10.1021/om00001a072