lithium cyclopentadienylide

• 分子结构分类: 有机化合物 - 碳氢化合物衍生物
• 英文名称: lithium cyclopentadienylide
• 英文别名: cyclopentadienyl lithium；lithium cyclopentadienide；CpLi；cyclopentadiene lithium；cyclopentadienyllithium；LiCp
• 化学式: C₅H₅Li
• 分子量: 72.0357
• InChiKey: QZYILKKHSWZGDW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.92
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 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：

  lithium cyclopentadienylide 在 四氢吡咯 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 生成 2-(6-tert-butoxyhexyl)-5-(propan-2-ylidene)cyclopenta-1,3-diene
  参考文献：
  名称：

  The effect that 6-tert-butoxyhexyl functionalization has on ethylene polymerization in ansa-zirconocene dichlorides

  摘要：

  New ansa-zirconocene dichloride derivatives have been prepared, which have a 6-t-butoxyhexyl pendant introduced either on a Cp-ring-carbon or at the silicon and carbon ansa-bridging atom. Ethylene polymerization studies have been carried out with novel precatalysts of the type: [(eta(5)-C13H8)-X(t-BuOC6H12)Me-(eta(5)-C5H4)]ZrCl, [X=C [1a], Si [2a]], [(eta(5)-C13H8)-XMe2-(eta(5)-(t-BuOC6H12C5H3))] ZrCl, [X = C [3a], Si [4a]] in the presence of excess methylalumoxane (MAO) to compare their catalytic activity and to delineate the effect of the 6-t-butoxyhexyl functionality on ethylene polymerization. The precatalysts [1a] and [2a] with the bridge functionality showed higher activity in ethylene polymerization than the corresponding complexes [3a] and [4a] which have it on the Cp ring moiety. On the other hand the silyl bridged complexes [2a] and [4a] produced a higher molecular weight polyethylene than the carbon-bridged one, regardless of the location of functional group. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2003.10.006
• 作为产物：
  描述：

  环戊二烯 在 正丁基锂 作用下， 以 正己烷 为溶剂， 反应 3.0h， 生成 lithium cyclopentadienylide
  参考文献：
  名称：

  フルオロシリコン置換基を少なくとも１個有していてメタロセンの調製で用いるに有用な配位子

  摘要：

  本发明提供了一般式(I)和(II)的化合物：嵌入图片，以及具有由式(I)表示的至少一个氟硅取代基的配体，它们的制备以及它们在制备对烯烃聚合有用的催化剂中的使用。

  公开号：

  JP2004516245A
• 作为试剂：
  描述：

  对甲苯磺酰叠氮 在 乙醚 、 lithium cyclopentadienylide 作用下， 生成 5-重氮基环戊并-1,3-二烯
  参考文献：
  名称：

  Diazocyclopentadiene¹

  摘要：

  DOI：

  10.1021/ja01119a051

文献信息

• Transition metal complex, process for producing the same, olefin polymerization catalyst containing the transition metal complex and process for producing olefin polymers
  申请人：Sumitmo Chemical Company, Limited

  公开号：US06329478B1

  公开（公告）日：2001-12-11

  The present invention relates to a transition metal complex, a process for producing the same, a polymerization catalsyt containing the transition metal complex and a process for producing polymers which uses the catalysts.

  本发明涉及一种过渡金属配合物，其制备方法，含有该过渡金属配合物的聚合催化剂，以及使用该催化剂生产聚合物的方法。
• Preparation of bridged half sandwich complexes
  申请人：BASF Aktiengesellschaft

  公开号：US05621127A1

  公开（公告）日：1997-04-15

  Bridged half sandwich complexes are prepared by reacting cyclopentadienides with aziridines and subsequently adding metallating agents and transition metal compounds.

  桥式半夹心配合物是通过将环戊二烯基化合物与环氧乙烷反应，然后加入金属化试剂和过渡金属化合物制备的。
• Process for producing hinokitiol
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：US06310255B1

  公开（公告）日：2001-10-30

  A process for producing hinokitiol which comprises the step of obtaining 1-isopropylcyclopentadiene from cyclopentadiene and an isopropylating agent represented by the general formula R—X wherein R is an isopropyl group and X is a halogen or the like (first step), reacting it with a dihaloketene to obtain a ketene adduct (second step), and decomposing the ketene adduct (third step), said first step comprising the following three steps: a) a preparation step of cyclopentadienyl metal; b) a step of obtaining isopropylcyclopentadiene by isopropylating the cyclopentadienyl metal in an aprotic polar solvent; and c) a step of isomerizing 5-isopropylcyclopentadiene in the product selectively to 1-isopropylcyclopentadiene with heat.

  生产桧木酚的方法包括以下步骤：从环戊二烯和一种由通式R-X表示的异丙基化剂中获得1-异丙基环戊二烯（第一步），将其与二卤代酮反应以获得酮加合物（第二步），并分解酮加合物（第三步）。其中，第一步包括以下三个步骤：a）环戊二烯基金属的制备步骤；b）在无水极性溶剂中通过异丙基化合物制备异丙基环戊二烯；c）通过加热选择性地使产物中的5-异丙基环戊二烯异构化为1-异丙基环戊二烯。
• Metallocene adduct, its preparation and its application in olefin
  申请人：Research Institute of Petroleum Processing, SINOPEC

  公开号：US06057467A1

  公开（公告）日：2000-05-02

  This invention relates to an three-constituent adduct of a metallocene.an ether.an metal halide having the general formula of Cp'MQ.sub.2.RXR'.nM'Q.sub.2/n, where Cp' is a substituted or an unsubstituted dicyclopentadienyl, M is zirconium or titanium, RXR' is tetrahydrofuran or diethylether, M' is alkali metal or alkali earth metal, n=1 or 2. The adduct can be exposed to air for several hours or stored in nitrogen atmosphere for a long period of time, which is prepared by means of a simple and convenient process without further separation and purification and used directly as a catalyst for polymerization of olefins.

  本发明涉及一种由金属茂配合物、醚和金属卤化物组成的三组分加合物，其一般式为Cp'MQ.sub.2.RXR'.nM'Q.sub.2/n，其中Cp'是取代或未取代的二环戊二烯基，M为锆或钛，RXR'为四氢呋喃或二乙醚，M'为碱金属或碱土金属，n=1或2。该加合物可以在空气中暴露数小时或在氮气氛围中长时间存储，通过简单方便的方法制备而成，无需进一步分离和纯化，可直接用作烯烃聚合的催化剂。
• Zirconocene complexes bearing novel 3-dimethylamino-1,2-dihydropentalene derived ligand systems
  作者：Bao-Hua Xu、Gerald Kehr、Roland Fröhlich、Elisa Nauha、Gerhard Erker

  DOI：10.1039/c0dt00515k

  日期：——

  Coupling of the N,N-dimethylacrylamides 6a–c with cyclopentadienide resulted in the formation of the substituted 3-dimethylamino-1,2-dihydropentalnenes 2a–c. Deprotonation followed by metallation with CpZrCl3·DME gave the substituted zirconocenes 12a–c. The reaction of 3-dimethylamino-1-methyl-dihydropentalene 2a with ZrCl2(NMe2)2·2THF resulted in a unique coupling between a pair of the aminodihydropentalene derivatives to yield an unsymmetrically bridged novel ansa-zirconocene framework (9a). Treatment of the 1,1-dimethyl-substituted substrate 2b with this Zr-amido reagent in contrast resulted in a clean deprotonation and formation of the unbridged bis(dimethylaminohydropentalenyl)ZrCl2 complexes 10b. The compounds 2a, 9a, meso-10b, 12a and 12c were characterized by X-ray diffraction.

  N,N-二甲基丙烯酰胺 6a–c 与环戊二烯化物的偶联导致形成取代的 3-二甲基氨基-1,2-二氢戊烯 2a–c。去质子化，然后用 CpZrCl3·DME 金属化，得到取代的二茂锆 12a–c。 3-二甲氨基-1-甲基-二氢并环戊二烯 2a 与 ZrCl2(NMe2)2·2THF 的反应导致一对氨基二氢并环戊二烯衍生物之间发生独特的偶联，从而产生不对称桥联的新型柄型二茂锆骨架 (9a)。相反，用该Zr-酰氨基试剂处理1,1-二甲基取代的底物2b导致完全去质子化并形成未桥联的双(二甲基氨基氢五烯基)ZrCl 2 络合物10b。通过X射线衍射对化合物2a、9a、meso-10b、12a和12c进行了表征。