Dimethyl{bis[(phenyltellanyl)methyl]}silane | 646997-46-8

• 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: Dimethyl{bis[(phenyltellanyl)methyl]}silane
• 英文别名: dimethyl-bis(phenyltellanylmethyl)silane
• CAS: 646997-46-8
• 化学式: C₁₆H₂₀SiTe₂
• 分子量: 495.62
• InChiKey: NWMYABNMDUOPET-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.67
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 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：

  bis(benzonitrile)dichloroplatinum(II) 、 Dimethyl{bis[(phenyltellanyl)methyl]}silane 以 二氯甲烷 为溶剂， 以89%的产率得到
  参考文献：
  名称：

  (Phenylthiomethyl)silanes and (butyltelluromethyl)silanes as novel bifunctional ligands for the construction of dithioether-, ditelluroether- and transition metal–silicon complexes

  摘要：

  The functionalized silanes (PhSCH2)(2)SiPh2 (1a), (PhSCH2)(2)Si(vinyl)Me (1b), (PhSCH2)(2)Si(H)Me (1c) and (PhSCH2)(3)SiH (1d) have been prepared and co-ordinated as chelating dithioether ligands or via a covalent M-Si bond to various transition metal centers. Thus. reaction of 1a with [PtCl2(PhCN)(2)] affords the dithioether complex cis-[PtCl2{(PhSCH2)(2)SiPh2}] (3), which exist in solution as mixtures of DL- and meso-invertomers. Treatment of [Re(p-Br)(CO)(3)THF](2) with 1a-c yielded the stereochemically rigid chelate complexes fac-[ReBr(CO)(3){(PhSCH2)(2)(SiRR2)-R-1}] (R-1, R-2 = Ph (4a)), (R-1 = vinyl, R-2 = Me (4b)), (R-1 = H, R-2 = Me (4c)). Due to the presence of two different substituents R-1 and R-2 on Si, 4b and 4c are isolated as 50:50 mixtures of diastereomers. The presence of a Si-H function in 1c.d can be exploited for Si-H activation reactions. Thus, oxidative addition on [Pt(PPh3)(2)(CH2=CH2)] yields the fluxional hydrido silyl complex [Pt(H)(PPh3)(2){Si(CH2Ph)(2)Me}] (5a) and the rigid derivative [Pt(H)(PPh3)(2){Si(CH2SPh)(3)}] (5b). The ditelluroether complexes cis-[PtCl2{(RTeCH2)(2)SiMe2)] (6a, R = Ph), (6b, R = n-Bu) are obtained by treatment of [PtCl2(PhCN)(2)] with (PhTeCH2)(2)SiMe2 (2a) and (n-BuTeCH2)(2)SiMe2 (2b), respectively. The complex fac-[ReBr(CO)(3){n-BuTeCH2)(2)SiMe2}] (7) results from the reaction of [Re(mu-Br)(Co)(3)THF](2) with (2b). The new compounds have been studied by multinuclear NMR techniques, the crystal structures of 3, 4a, 5 and 6b have been determined by X-ray diffraction studies. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0020-1693(02)01519-0

文献信息

• (Phenylthiomethyl)silanes and (butyltelluromethyl)silanes as novel bifunctional ligands for the construction of dithioether-, ditelluroether- and transition metal–silicon complexes
  作者：M Knorr、F Guyon、I Jourdain、S Kneifel、J Frenzel、C Strohmann

  DOI：10.1016/s0020-1693(02)01519-0

  日期：2003.7

  The functionalized silanes (PhSCH2)(2)SiPh2 (1a), (PhSCH2)(2)Si(vinyl)Me (1b), (PhSCH2)(2)Si(H)Me (1c) and (PhSCH2)(3)SiH (1d) have been prepared and co-ordinated as chelating dithioether ligands or via a covalent M-Si bond to various transition metal centers. Thus. reaction of 1a with [PtCl2(PhCN)(2)] affords the dithioether complex cis-[PtCl2(PhSCH2)(2)SiPh2}] (3), which exist in solution as mixtures of DL- and meso-invertomers. Treatment of [Re(p-Br)(CO)(3)THF](2) with 1a-c yielded the stereochemically rigid chelate complexes fac-[ReBr(CO)(3)(PhSCH2)(2)(SiRR2)-R-1}] (R-1, R-2 = Ph (4a)), (R-1 = vinyl, R-2 = Me (4b)), (R-1 = H, R-2 = Me (4c)). Due to the presence of two different substituents R-1 and R-2 on Si, 4b and 4c are isolated as 50:50 mixtures of diastereomers. The presence of a Si-H function in 1c.d can be exploited for Si-H activation reactions. Thus, oxidative addition on [Pt(PPh3)(2)(CH2=CH2)] yields the fluxional hydrido silyl complex [Pt(H)(PPh3)(2)Si(CH2Ph)(2)Me}] (5a) and the rigid derivative [Pt(H)(PPh3)(2)Si(CH2SPh)(3)}] (5b). The ditelluroether complexes cis-[PtCl2(RTeCH2)(2)SiMe2)] (6a, R = Ph), (6b, R = n-Bu) are obtained by treatment of [PtCl2(PhCN)(2)] with (PhTeCH2)(2)SiMe2 (2a) and (n-BuTeCH2)(2)SiMe2 (2b), respectively. The complex fac-[ReBr(CO)(3)n-BuTeCH2)(2)SiMe2}] (7) results from the reaction of [Re(mu-Br)(Co)(3)THF](2) with (2b). The new compounds have been studied by multinuclear NMR techniques, the crystal structures of 3, 4a, 5 and 6b have been determined by X-ray diffraction studies. (C) 2002 Elsevier Science B.V. All rights reserved.