trans-Pt(PMe2Ph)2(SiPh2Me)Ph | 273219-61-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: trans-Pt(PMe2Ph)2(SiPh2Me)Ph
• CAS: 273219-61-7
• 化学式: C₃₅H₄₀P₂PtSi
• 分子量: 745.816
• InChiKey: YLFAQBWEIMISBN-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  trans-Pt(PMe2Ph)2(SiPh2Me)Ph 在 CO 作用下， 以 二氯甲烷 为溶剂， 以83%的产率得到cis-(PhMe2P)2Pt(Ph)(SiPh2Me)
  参考文献：
  名称：

  Thermolysis Reactions of cis-PtR(SiPh₃)(PMe₂Ph)₂ in Solution

  摘要：

  A series of trans- and cis-PtR(SiPh3)(PMe2Ph)(2) complexes have been prepared and their thermolysis reactions in solution examined. The trans isomers (R = Me, Et) are robust, and only the methyl complex affords MeSiPh3 as the reductive elimination product in 72-82% yields. In contrast, the cis isomers (R = Me, Et, Pr, Bu) form the corresponding alkylsilanes in almost quantitative yields (>97%). Despite the selective formation of the reductive elimination products, the cis-alkyl-silyl complexes bearing beta-hydrogens undergo a rapid repetition of the beta-hydrogen elimination and insertion processes, as confirmed by a deuterium-labeling experiment using cis-Pt(CH2CD3)(SiPh3)(PMe2Ph)(2). The alkylsilane formation from the cis isomers proceeds via two reaction paths. One is the direct C-Si reductive elimination. On the other path, the cis-PtR(SiPh3)(PMe2Ph)(2) complexes are initially isomerized to the corresponding cis-PtPh(SiRPh2)(PMe2Ph)(2) complexes by the exchange of the Pt-R group with the Si-Ph group, and the resulting phenyl-silyl complexes reductively eliminate alkylsilanes. The methyl-silyl complex decomposes exclusively by the former path, while the other alkyl-silyl complexes (R = Et, Pr, Bu) follow mainly the latter path. Preparation and thermolysis reaction of the related cis-PtEt(GePh3)(PMe2Ph)(2) are also reported.

  DOI：

  10.1021/om000012t
• 作为产物：
  描述：

  trans-chloro(methyldiphenylsilyl)bis(dimethylphenylphosphine)platinum(II) 、 苯基锂 以 四氢呋喃 、 乙醚 为溶剂， 以66%的产率得到trans-Pt(PMe2Ph)2(SiPh2Me)Ph
  参考文献：
  名称：

  Thermolysis Reactions of cis-PtR(SiPh₃)(PMe₂Ph)₂ in Solution

  摘要：

  A series of trans- and cis-PtR(SiPh3)(PMe2Ph)(2) complexes have been prepared and their thermolysis reactions in solution examined. The trans isomers (R = Me, Et) are robust, and only the methyl complex affords MeSiPh3 as the reductive elimination product in 72-82% yields. In contrast, the cis isomers (R = Me, Et, Pr, Bu) form the corresponding alkylsilanes in almost quantitative yields (>97%). Despite the selective formation of the reductive elimination products, the cis-alkyl-silyl complexes bearing beta-hydrogens undergo a rapid repetition of the beta-hydrogen elimination and insertion processes, as confirmed by a deuterium-labeling experiment using cis-Pt(CH2CD3)(SiPh3)(PMe2Ph)(2). The alkylsilane formation from the cis isomers proceeds via two reaction paths. One is the direct C-Si reductive elimination. On the other path, the cis-PtR(SiPh3)(PMe2Ph)(2) complexes are initially isomerized to the corresponding cis-PtPh(SiRPh2)(PMe2Ph)(2) complexes by the exchange of the Pt-R group with the Si-Ph group, and the resulting phenyl-silyl complexes reductively eliminate alkylsilanes. The methyl-silyl complex decomposes exclusively by the former path, while the other alkyl-silyl complexes (R = Et, Pr, Bu) follow mainly the latter path. Preparation and thermolysis reaction of the related cis-PtEt(GePh3)(PMe2Ph)(2) are also reported.

  DOI：

  10.1021/om000012t