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(C5Me5)2Sm(η(3)-CH2CHCHEt) | 205490-88-6

中文名称
——
中文别名
——
英文名称
(C5Me5)2Sm(η(3)-CH2CHCHEt)
英文别名
(C5Me5)2Sm(η(3)-CH2CHCHCH2CH3);1,2,3,4,5-pentamethylcyclopenta-1,3-diene;(E)-pent-2-ene;samarium(3+)
(C5Me5)2Sm(η(3)-CH2CHCHEt)化学式
CAS
205490-88-6
化学式
C25H39Sm
mdl
——
分子量
489.945
InChiKey
YNVKINUGYMBVHG-SXMYUENQSA-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

反应信息

  • 作为反应物:
    描述:
    (C5Me5)2Sm(η(3)-CH2CHCHEt)二氧化碳甲苯 为溶剂, 以98%的产率得到[(C5Me5)Sm(μ-O2CCH2CH=CHCH2CH3)]2
    参考文献:
    名称:
    CO 2插入化学作为有机osa烯丙基反应性的探针
    摘要:
    CO 2发生反应与(C 5我5)2 SM(η 3 -CH 2 CHCH 2),1,在室温下,并用(C甲苯5我5)2 SM(η 3 -CH 2 CHCHR)(R =箱(2),等(3))在甲苯在-78℃下以形成[(C 5箱5)2的Sm(μ-O 2 CCH 2 CH CHR)] 2(R = H(4)中,Me(5)Et(6)),收率> 90%。在THF中,4 - 6存在溶剂化单金属物种,(C 5我5)2的Sm(μ 2 -O 2 CCH 2 CH CHR)(THF)。从己烷中结晶出4会得到一个双金属络合物,其中包含一个八元环。CS 2下进行反应以1到表格(C 5我5)2 SM(η 2 -S 2 CCH 2 CH CH 2),7,其异构化成(C 5我5)2 SM(η 2 -S 2 CCH CHCH 3),8,在不到48小时。用COS发生反应1,以形成(C 5我5)2 SM(η 2 -OSCCH 2 CH
    DOI:
    10.1021/om9710428
  • 作为产物:
    描述:
    samarocene反-2-戊烯 以 neat (no solvent) 为溶剂, 以1%的产率得到[(C5Me5)2Sm]2(μ-O)
    参考文献:
    名称:
    Metalation as a Termination Step in Polymerization Reactions Involving α-Olefins and Ethylene As Detected by Field Desorption Mass Spectrometry1
    摘要:
    Field desorption mass spectroscopy (FD-MS) in conjunction with NMR spectroscopy has been used to study how olefins larger than ethylene are incorporated into polyethylene using (C(5)Me(5))(2)Sm-based catalysts under hydrogen. Polymerization reactions of propene, 1-pentene, cis- and trans-2-pentene, 1-heptene, trans-2-heptene, trans-3-heptene, 1-octene, and 1-nonadecene with ethylene under H-2 and with CD2=CD2 under D-2 were studied as well as reactions of ethylene with propene-d(6) and 3,3,3-propene-d(3) using (C(5)Me(5))(2)Sm and (C(5)Me(5))(2)Sm(eta(3)-CH(2)CHCHR) precursors where R = H, Et, and Bu. For the olefins listed above, the combined analytical techniques with the appropriate deuterium labeling indicate that one olefin is selectively incorporated per polyethylene chain and that incorporation occurs by insertion into a Sm-H bond in the system rather than via an allyl group. Metalation of the olefin by growing polymer chains was found to be competitive with hydrogenolysis as a termination step and can be used to control molecular weight. 2-Pentene and 2-heptene do not incorporate as readily as their alpha-olefin analogs and 3-heptene incorporation was not detectable, but these internal olefins are effective termination agents via metalation.
    DOI:
    10.1021/om960298v
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