| 135584-39-3

• CAS: 135584-39-3
• 化学式: C₄₆H₄₂NiO₄P₂
• 分子量: 779.475
• InChiKey: JQWGXOGIZICMOR-ZGOHZKFSSA-N

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

• 作为产物：
  描述：

  bis(triphenylphosphine)ethylenenickel(0) 、 dimethyl 3-vinylcyclobutene-1,2-dicarboxylate 以 氘代苯 为溶剂， 生成
  参考文献：
  名称：

  Transition-metal-promoted conversion of dichlorovinylcyclobutanes to cyclohexadienes

  摘要：

  The nickel(0)- and iron(0)-promoted dechlorination of dimethyl 1,2-dichloro-3-vinylcyclobutane-1,2-dicarboxylate (1) to dimethyl 3-vinylcyclobutene-1,2-dicarboxylate (2) occurs faster in the trans isomer. Nickel(0) and nickel(I), but not iron(0), with promote the rearrangement of this vinylcyclobutene to dimethyl 1,4-cyclohexadiene-1,2-dicarboxylate (3). The effect of methyl substituents on these reactions indicate that the nickel must transfer to the vinyl group before the rearrangement can occur. It also was found that nickel will cleave exclusively the bond between an sp2- and an sp3-hybridized carbon.

  DOI：

  10.1021/om00037a071

文献信息

• Isomerization of a vinylcyclobutene to a cyclohexadiene: a nickel(I) promoted rearrangement
  作者：Heajin Choi、James W. Hershberger、Allan R. Pinhas、Douglas M. Ho

  DOI：10.1021/om00054a072

  日期：1991.8

  The nickel-promoted isomerization of a 3-vinylcyclobutene to the corresponding 1,4-cyclohexadiene was studied by using (PPh3)2Ni(C2H4) as the nickel source. Through the use of chemical and electrochemical experiments, it was determined that nickel(I) and not nickel(0) promotes this isomerization reaction at room temperature. The corresponding platinum-vinylcyclobutene complex 4 has been characterized by a single-crystal X-ray diffraction study: C46H42O4P2Pt, monoclinic, P2(1)/n, with a = 10.774 (1) angstrom, b = 20.281 (4) angstrom, c = 18.297 (2) angstrom, beta = 97.37 (1)-degrees, Z = 4, R(F) = 0.0378, and R(w)(F) = 0.0371.