potassium cyclopentadienide | 30994-24-2

• 分子结构分类: 有机化合物 - 碳氢化合物衍生物
• 英文名称: potassium cyclopentadienide
• CAS: 30994-24-2
• 化学式: C₅H₅K
• 分子量: 104.193
• InChiKey: PASBBOPDQSUFPA-UHFFFAOYSA-N

物化性质

• 沸点：
  257°C

计算性质

• 辛醇/水分配系数(LogP)：
  0.94
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 海关编码：
  2931900090

反应信息

• 作为反应物：
  描述：

  potassium cyclopentadienide 在 钾硼氢 、 水 、 lithium carbonate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 、 水 、 氯苯 、 异丙醇 、 乙腈 为溶剂， 反应 36.0h， 生成
  参考文献：
  名称：

  恩替卡韦中间体及其制备方法

  摘要：

  本发明公开了一种恩替卡韦中间体及其制备方法。本发明提供了一种恩替卡韦中间体化合物3的制备方法，其包括以下步骤：在溶剂中，将化合物4进行还原反应，得到化合物3。本发明还提供了一种恩替卡韦中间体化合物4的制备方法，其包括以下步骤：在溶剂中，酸性条件下，将化合物5与化合物18进行缩醛交换反应，得到化合物4。本发明的制备方法原料廉价易得，反应条件温和，产品收率较高。原子经济性好，环境友好，适合于工业化生产。

  公开号：

  CN104177397B
• 作为产物：
  描述：

  环戊二烯 、 potassium tert-butyl 生成 potassium cyclopentadienide
  参考文献：
  名称：

  BARINOV I. V.; VOEVODSKAYA T. I.; USTYNYUK YU. A., BECTH. MGU. XIMIYA, 1980, 21, HO 1, 72-74

  摘要：

  DOI：

文献信息

• Photoelectron spectra and fluxional behaviour in some σ-cyclopentadienes
  作者：Stephen Cradock、E. A. V. Ebsworth、Hans Moretto、David W. H. Rankin

  DOI：10.1039/dt9750000390

  日期：——

  is shown to exist between fluxional behaviour in the σ-cyclopentadienes 5-RC5H5(R = H, CH3, SiH3, GeH3, or SiF3) and the relative positions of the two photoelectron bands due to the ring π-bonding electrons. For R = PF2 and SiCl3 interactions between the second ring level and non-bonding orbitals of R have to be taken into account. It is suggested that the fluxional behaviour arises from interaction

  显示出在σ-环戊二烯5-RC 5 H 5（R = H，CH 3，SiH 3，GeH 3或SiF 3）中的通量行为与两个光电子能带的相对位置之间存在密切相关性。环π键电子。对于R = PF 2和SiCl 3，必须考虑第二个环能级与R的非键轨道之间的相互作用。有人建议，该fluxional行为从R-C的相互作用产生5与对称环π键的水平，这是那些表现出快速fluxional行为化合物中最大的σ键合的水平。
• Synthesis and characterization of substituted cyclopentadienide ligands that may form chelates or metal dimers
  作者：Pei-Hung Yeh、Zhen Pang、Randy F. Johnston

  DOI：10.1016/0022-328x(95)05802-v

  日期：1996.3

  Nine different substituted cyclopentadienyl ligands, which have substituents that may either chelate or bridge to second metal center, have been prepared from nucleophilic substitution reactions of esters or alkyl halides with NaCp. The sodium or thallium salts of these ligands were isolated as solids and characterized by H-1 NMR. The alkyl halide and NaCp reaction proved to yield the purer salts of the ligands because of the milder reaction conditions. These salts were reacted futher with Mn(CO)(5)Br to form the corresponding manganese tricarbonyl derivatives (i.e. (C(5)H(4)R)Mn(CO)(3); where R=C(O)CH2OCH3, C(O)CH2SCH3, C(O)CH2CH2SCH3, CH2CO2CH3, CH2CO2CH2CH3, CH2CH2CO2CH3, CH2CH2CO2CH2CH3, CH2CH2O2CCH3, and CH2CH2OCH3) and Na(C5H4C(O)CH2OCH3) was reacted with Co-2(CO)(8) to form (C5H4C(O)CH2OCH3)Co(CO)(2). The manganese and cobalt compounds were characterized by elemental analysis, IR, H-1, and C-13 NMR spectra.
• Stereochemically nonrigid silanes, germanes, and stannanes. 9. Chiral silylcyclopentadienes and related compounds: mechanistic and stereochemical definition of fluxional behavior
  作者：Alan Bonny、Rupert D. Holmes-Smith、Geoffrey Hunter、Stephen R. Stobart

  DOI：10.1021/ja00371a013

  日期：1982.4
• Radical ions. 37. Ionization and one-electron oxidation of electron-rich silylalkyl olefins
  作者：H. Bock、W. Kaim

  DOI：10.1021/ja00533a023

  日期：1980.6
• Polycylopentadienyls: Synthesis of arylsilylcyclopentadienyl compounds and their η5-complexes with tungsten
  作者：Herbert Plenio

  DOI：10.1016/0022-328x(92)83456-r

  日期：1992.2

  A general route to arylsilylcyclopentadienyl compounds starting from 1,4-C6H4Br2, 2,6-C5NH3Br2 and 1,3,5-C6H3Br3 is described. The aryl bromides were treated with Mg/ClSiMe2H to give the aryldimethylsilanes 1,4-C6H4(SiMe2H)2, 2,6-C5NH3(SiMe2H)2, and 1,3,5-C6H3(SiMe2H)3 which after reaction with Cl2 or Br2 yielded the aryldimethylsilyl halides 1,4-C6H4(SiMe2Br)2, 2,6-C5NH3 (SiMe2Br)2, 1,3,5-C6H3(SiMe2X)3 (X = Br or Cl) in excellent yields. The halide can be replaced by various cyclopentadienides to give aryldimethylsilylcyclopentadienes of the general type 1,4-C6H4 (SiMe2CP)2 and 1,3,5-C6H3(SiMe2CP)3 (Cp = C5H5 (8,11), C5H3(t-C4H9)2 (9,12), C5HMe4 (10,13)). Compounds C6H5(SiMe2(C5H5)), 1,4-C6H4(SiMe2(C5H5))2 (8) and 1,3,5-C6H3(SiMe2(C5H5))3 (11) were in turn treated with NaH, (MeCN)3W(CO)3, and MeI to give the eta-5-bound complexes C6H5 (SiMe2(C5H4)W(CO)3Me) (14), 1,4-C6H4(SiMe2(C5H4)W(CO)3Me)2 (15), 1,3,5-C6H3(SiMe2(C5H4)-W(CO)3Me)3 (16), which contain up to three half-sandwich units within one molecule.