[Ta(η5-C5H5)(η5-C5H4SiMe2(CH2CH=CH2))Cl2] | 787577-29-1

• 英文名称: [Ta(η5-C5H5)(η5-C5H4SiMe2(CH2CH=CH2))Cl2]
• 英文别名: [Ta(η5-C5H4SiMe2(CH2CH=CH2))(η5-C5H5)Cl2]
• CAS: 787577-29-1
• 化学式: C₁₅H₂₀Cl₂SiTa
• 分子量: 480.263
• InChiKey: XSQPQIKEMDPMEP-UHFFFAOYSA-L

反应信息

• 作为反应物：
  描述：

  [Ta(η5-C5H5)(η5-C5H4SiMe2(CH2CH=CH2))Cl2] 、 甲基氯化镁 以 四氢呋喃 、 甲苯 为溶剂， 以60%的产率得到[Ta(η5-C5H5)(η5-C5H4SiMe2(CH2-η2-CH=CH2))Me]
  参考文献：
  名称：

  具有烯丙基二甲基甲硅烷基-eta5-环戊二烯基配体的烷基-η2-烯烃铌茂金属和钽茂金属配合物：合成，NMR研究和DFT计算。

  摘要：

  第5组金属配合物[M（eta5-C5H5）[eta5-C5H4SiMe2（CH2-eta2-CH = CH2）] X]（M = Nb，X = Me，CH2Ph，CH2SiMe3； M = Ta，X = Me，合成了CH2Ph）和[Ta（eta5-C5Me5）[eta5-C5H4SiMe2（CH2-eta2-CH = CH2）] X]（X = Cl，Me，CH2Ph，CH2SiMe3），其中包含与环戊二烯基环束缚的螯合烯烃配体通过用Na / Hg还原（X = Cl）和还原消除（X =烷基）的相应二氯化金属（iv）[M（eta5-Cp）[eta5-C5H4SiMe2（CH2CH = CH2）] Cl2 ]（Cp ＝ C5H5，M ＝ Nb，Ta，Cp ＝ C5Me5，M ＝ Ta）。这些氯和烷基烯烃配位的配合物与CO和异氰酸酯[CNtBu，CN（2,6-Me2C6H3）]反应，得到配体取代的金

  DOI：

  10.1039/b406747a
• 作为产物：
  描述：

  LiC5H4SiMe2(allyl) 、 tetrachlorido(η5-cyclopentadienyl)tantalum(V) 在 sodium amalgam 作用下， 以 甲苯 为溶剂， 以70%的产率得到[Ta(η5-C5H5)(η5-C5H4SiMe2(CH2CH=CH2))Cl2]
  参考文献：
  名称：

  Synthesis and characterization of η5-cyclopentadienyl–silylallyl niobium and tantalum complexes

  摘要：

  Reaction of the disilylcyclopentadiene 1,1-[SiMe2(CH2CH=CH2)](2)C5H4 with NbCl5 gave the new allylsilyl-substituted monocyclopentadienyl niobium complex [Nb{eta(5)-C5H4SiMe2(CH2CH=CH2)}Cl-4]. This compound was reacted with LiNHtBu or NH(2)tBu to give the imido derivative [Nb{eta(5)-C5H4SiMe2(CH2CH=CH2) (NtBu)Cl-2], which was further alkylated to the imido alkyl complexes [Nb{eta(5)-C5H4SiMe2(CH2CH=CH2)}(NtBu)Cl-2] (R=Me, CH2Ph) and [Nb{eta(5)-C5H4SiMe2(CH2CH=CH2)}(NtBu)Cl (CH2Ph)]. Reaction of the imido complexes with the corresponding lithium cyclopentadienides gave the dicyclopentadienyl-imido complexes [M(eta(5)-C5R5){eta(5)-C5H4SiMe2(CH2CH=CH2)}(NtBu)Cl] (M = Nb, Ta; R = H, Me). Metallocene dichlorides [M(eta(5)-C5R5){eta(5)-C5H4SiMe2(CH2CH=CH2)}Cl-2] (M = Nb, Ta; R = H, Me) were easily prepared by reduction with Na/Hg and simultaneous transmetallation of [Ta(eta(5)-C5R5)Cl-4] with Li[C5H4SiMe2(CH2CH=CH2)] and of [Nb{eta(5)-C5H4SiMe2(CH2CH=CH2)}Cl-4] with Li(C5R5). All of the new compounds have been characterized by elemental analysis, and IR and NMR spectroscopy. (c) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2004.09.017