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lithium,5-ethyl-1,2,3,4-tetramethylcyclopenta-1,3-diene | 71237-30-4

中文名称
——
中文别名
——
英文名称
lithium,5-ethyl-1,2,3,4-tetramethylcyclopenta-1,3-diene
英文别名
lithium ethyltetramethylcyclopentadienyl
lithium,5-ethyl-1,2,3,4-tetramethylcyclopenta-1,3-diene化学式
CAS
71237-30-4
化学式
C11H17Li
mdl
——
分子量
156.197
InChiKey
JGSOIUNIMSFNJW-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    None
  • 重原子数:
    None
  • 可旋转键数:
    None
  • 环数:
    None
  • sp3杂化的碳原子比例:
    None
  • 拓扑面积:
    None
  • 氢给体数:
    None
  • 氢受体数:
    None

SDS

SDS:3d15d2eea8c2ea30872ec54f66536f08
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反应信息

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文献信息

  • Effects of methyl substituents at the cyclopentadienyl ligand on the properties of C5H5TiCl3 and C5H5TiAl2Cl8-x(C2H5)x (x = 0–4) complexes
    作者:Karel Mach、Vojtech Varga、Helena Antropiusová、Jindřich Poláček
    DOI:10.1016/0022-328x(87)85153-7
    日期:1987.10
    the complexes CpTiAl2Cl4Et4 became stable even with the excess of Et3Al. The CpTiAl2Cl8-xEtx complexes were also formed in the redox reaction of non-dimerizing methylcyclopentadienes (Me3CpH/EtMe4CpH) with bis(di-μ-chloroalane)(benzene)titanium(II) complexes C6H6 · TiAl2Cl8-xEtx (x = 0–2). The reaction was found stoichiometric except for the perchloro complexes forming diamagnetic byproducts.
    CPTiCl 3化合物系列中的甲基取代基(CP = CP,MeCP,Me 3 CP,Me 4 CP,Me 5 CP和EtMe 4 CP)将其CT吸收带的位置从λ= 384 nm移至最大。438 nm并降低了乙基铝化合物对CPTiCl 3的还原速率,从而生成了三核CPTiAl 2 Cl 8- x Et x(x = 0-4)配合物。在CPTiCl 3 /过量的Et 2的AlCl系统还原率是由八面体提出中间CPTiEt的pseudomonomolecular分解控制(CL 2 ALET2)(Cl 3 AlEt)。在上述系列的CPTiCl 3化合物中,还原的速率常数从1.10×10 -3降低到6.15×10 -5 s -1。CPTiAl 2 Cl 8- x Et x络合物中的甲基取代基将电荷转移带移至更长的波长,dd跃迁至较短的波长,并且ESR g值远离自由电子值。通过用乙基取代铝酸盐配体中的外原子引起相反的变化。从CP变为Me
  • Hafnocene Catalysts for Selective Propylene Oligomerization:  Efficient Synthesis of 4-Methyl-1-pentene by β-Methyl Transfer
    作者:Yasuhiko Suzuki、Takahiro Yasumoto、Kazushi Mashima、Jun Okuda
    DOI:10.1021/ja063717g
    日期:2006.10.1
    HfCl2 with [R1, R2] = [H, H] (1), [Me, H] (2), [Me, Me] (3), [Et, Me] (4), [(i)Pr, Me] (5), [SiMe(3), Me] (6), [(t)Bu, Me] (7), [(n)Bu, Me] (8), [(i)Bu, Me] (9), [Et, Et] (10), [(n)Bu, (n)Bu] (11), [(i)Bu, (i)Bu] (12) was tested as catalyst precursors for propylene oligomerization. Upon activation with methylaluminoxane or [Ph(3)C][B(C(6)F(5))(4)]/Al(i)Bu(3), complexes 2-4 and 8-12 catalyzed the dimerization
    一系列茂配合物 (eta5-C5Me4R1)(eta5-C5Me4R2)HfCl2 与 [R1, R2] = [H, H] (1), [Me, H] (2), [Me, Me] (3), [Et, Me] (4), [(i)Pr, Me] (5), [SiMe(3), Me] (6), [(t)Bu, Me] (7), [(n)Bu , Me] (8), [(i)Bu, Me] (9), [Et, Et] (10), [(n)Bu, (n)Bu] (11), [(i)Bu, ( i)Bu] (12) 作为丙烯低聚反应的催化剂前体进行了测试。在用甲基铝氧烷或 [Ph(3)C][B(C(6)F(5))(4)]/Al(i)Bu(3) 活化后,配合物 2-4 和 8-12 催化了丙烯生产 4-甲基-1-戊烯,在产物混合物中的选择性范围为 23.9 至 61.6 重量%。选择性取决于取代基 R(1)
  • Cyclopentadienyl, indenyl and bis(cyclopentadienyl) titanium imido compounds
    作者:Simon C. Dunn、Philip Mountford、David A. Robson
    DOI:10.1039/a605470f
    日期:——
    The titanium tert-butyl imido compounds [Ti(NBu t )Cl 2 (NC 5 H 4 R-4) n ] (R = H, n = 2 or 3; R = Bu t , n = 2) have been found to be entry points to the half-sandwich η 5 -cyclopentadienyl derivatives [Ti(η 5 -C 5 R′ 4 R″)(NBu t )Cl(NC 5 H 4 R-4)] (R = Bu t , R′ = R″ = H or Me; R = H, R′ = H, R″ = H, Me or Pr i ; R = H, R′ = Me, R″ = Me, Et or C 4 H 7 ), the η 5 -1,2,3-trimethylindenyl species [Ti(η 5 -C 9 H 4 Me 3 )(NBu t )Cl(NC 5 H 4 Bu t -4)] and the bis(η 5 -cyclopentadienyl) compound [Ti(η 5 -C 5 H 5 ) 2 (NBu t )(NC 5 H 5 )], the crystal structure of which has been determined. The complex [Ti(η 5 -C 5 H 5 )(NBu t )Cl(NC 5 H 5 )] readily loses pyridine under vacuum in the solid state to form the binuclear complex [Ti 2 (η 5 -C 5 H 5 ) 2 ( µ-NBu t ) 2 Cl 2 ]. Treatment of [Ti(η 5 -C 5 Me 4 R)(NBu t )Cl(NC 5 H 5 )] (R = Me or Et) with Na[C 5 H 5 ] gives the corresponding mixed-ring sandwich derivatives [Ti(η 5 -C 5 H 5 )(η 5 -C 5 Me 4 R)(NBu t )Cl(NC 5 H 5 )]. Addition of Li[C 9 H 7 ] to [Ti(η 5 -C 5 H 5 )(NBu t )Cl(NC 5 H 5 )] gave the η 5 -cyclopentadienyl, η 3 -indenyl mixed-ring analogue [Ti(η 5 -C 5 H 5 )(η 3 -C 9 H 7 )(NBu t )(NC 5 H 5 )]. The complex [Ti(η 5 -C 5 H 5 ) 2 (NBu t )(NC 5 H 5 )] undergoes a room-temperature cyclopentadienyl ligand-redistribution reaction with [Ti(NBu t )Cl 2 (NC 5 H 5 ) 2 ] forming [Ti(η 5 -C 5 H 5 )(NBu t )Cl(NC 5 H 5 )] in quantitative yield. Variable-temperature NMR spectra for the half-sandwich complexes show that the co-ordinated pyridine exchanges with free pyridine via an associative mechanism. The compound [Ti(η 5 -C 5 H 5 )(η 5 -C 5 Me 4 Et)(NBu t )(NC 5 H 5 )] is also fluxional and exhibits reversible pyridine dissociation at higher temperatures and restricted rotation about the Ti–N (pyridine) bond at lower temperatures.
    叔丁基亚化合物 [Ti(NBu t)Cl 2 (NC 5 H 4 R-4) n ](R = H,n = 2 或 3; R = Bu t ,n = 2)已被发现是半夹心η 5 -环戊二烯基衍生物[Ti(η 5 -C 5 R′ 4 R″)(NBu t )Cl(NC 5 H 4 R-4)] (R = Bu t ,R′ = R″ = H 或 Me ;R = H ,R′ = H ,R″ = H ,Me 或 Pr i ;R=H,R′=Me,R″=Me,Et 或 C 4 H 7)、η 5 -1,2,3-三甲基基化合物[Ti(η 5 -C 9 H 4 Me 3 )(NBu t )Cl(NC 5 H 4 Bu t -4)]和双(η 5 -环戊二烯基)化合物[Ti(η 5 -C 5 H 5 ) 2 (NBu t )(NC 5 H 5 )],其晶体结构已经确定。复合物 [Ti(η 5 -C 5 H 5 )(NBu t )Cl(NC 5 H 5 )] 在固态真空下很容易失去吡啶,形成双核复合物 [Ti 2 (η 5 -C 5 H 5 ) 2 ( µ-NBu t ) 2 Cl 2 ]。用 Na[C 5 H 5 ]处理[Ti(η 5 -C 5 Me 4 R)(NBu t )Cl(NC 5 H 5 )] (R = Me 或 Et),可得到相应的混环夹心衍生物[Ti(η 5 -C 5 H 5 )(η 5 -C 5 Me 4 R)(NBu t )Cl(NC 5 H 5 )]。在[Ti(η 5 -C 5 H 5 )(NBu t )Cl(NC 5 H 5 )] 中加入 Li[C 9 H 7 ],可得到 η 5 -环戊二烯基、η 3 -基混合环类似物[Ti(η 5 -C 5 H 5 )(η 3 -C 9 H 7 )(NBu t )(NC 5 H 5 )]。 复合物 [Ti(η 5 -C 5 H 5 ) 2 (NBu t )(NC 5 H 5 )] 与 [Ti(NBu t )Cl 2 (NC 5 H 5 ) 2 ] 发生室温环戊二烯配体再分布反应,形成 [Ti(η 5 -C 5 H 5 )(NBu t )Cl(NC 5 H 5 )] 复合物,产量定量。半夹心复合物的变温核磁共振光谱显示,配位吡啶与游离吡啶通过缔合机制发生交换。化合物[Ti(η 5 -C 5 H 5 )(η 5 -C 5 Me 4 Et)(NBu t )(NC 5 H 5 )]也具有通性,在较高温度下表现出可逆的吡啶解离,在较低温度下表现出围绕 Ti-N (吡啶)键的受限旋转。
  • Electron spin adjustment in manganocenes. Preparative, paramagnetic NMR and X-ray study on substituent and solvent effects
    作者:Nikolaus. Hebendanz、Frank H. Koehler、Gerhard. Mueller、Juergen. Riede
    DOI:10.1021/ja00272a023
    日期:1986.6
    Preparation d'une serie de manganocenes ou l'on fait varier un substituant par Cp et le nombre d'alkyls par Cp. Etude RMN de la serie. Structure cristalline de (Me 3 SiCp) 2 Mn
    准备 d'une serie de manganocenes ou l'on fait varier un substituant par Cp et le nombre d'alkyls par Cp。练习曲 RMN de la 系列。结构 crastalline de (Me 3 SiCp) 2 Mn
  • Neutral lanthanide silyl complexes via σ-bond metathesis reactions
    作者:Nora S. Radu、T. Don Tilley、Arnold L. Rheingold
    DOI:10.1016/0022-328x(95)06088-e
    日期:1996.6
    The alkyl complexes Cp2∗LnCH(SiMe3)2 () and Cp2″LnCH(SiMe3)2 (Cp″ = η5 -C5Me4Et; Ln  Sn, Nd) react with neat H2Si(SiMe3)2 (ca. 5 equivalents) at 85 °C to give the new silyl complexes Cp2∗LnSiH(SiMe3)2 ( (). These neutral silyl complexes have been completely characterized, and are monometic in pentane solution at room temperature. The structure of 3 reveals that this compound forms dimers in the solid
    的烷基配合物的CP 2 * LnCH(森达3)2()1和CP 2 “LnCH(森达3)2(CP”= η 5 -C 5我4的Et; LN,Nd)的用纯反应1h 2的Si( SiMe 3)2(约5当量)在85°C时得到新的甲硅烷基络合物CP 2 * LnSiH(SiMe 3)2(()。这些中性甲硅烷基络合物已被完全表征,并且在室温下于戊烷溶液中呈单体态温度。结构3揭示了通过分子间Sm3CH此化合物形成二聚体在固态3 Si相互作用。在SmSi键长3是3.052(8)。最初的反应性研究表明LnSi键具有高反应性。
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