2-ethylidenenorbornane | 39173-91-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 2-ethylidenenorbornane
• 英文别名: E-2-Aethyliden-bicyclo<2.2.1>heptan；cis-2-Ethylidenbicyclo<2.2.1>heptan；2-Ethylidenbicyclo<2.2.1>heptan (cis)；(2E)-2-ethylidenebicyclo[2.2.1]heptane
• CAS: 39173-91-6
• 化学式: C₉H₁₄
• 分子量: 122.21
• InChiKey: JURLNXPXCMWCHE-KRXBUXKQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.78
• 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：

  2-ethylidenenorbornane 在 吡啶 、 chromium(VI) oxide 、 氢氧化钾 、 对甲苯磺酸 作用下， 以 甲醇 为溶剂， 生成 1-乙基双环[2.2.1]庚烷-2-酮
  参考文献：
  名称：

  Belikova,N.A. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 241 - 247

  摘要：

  DOI：
• 作为产物：
  描述：

  5-ethylidene-2-norbornene 在 镍 吡啶 、 氢气 作用下， 以 甲醇 为溶剂， 生成 2-ethylidenenorbornane
  参考文献：
  名称：

  Belikova,N.A. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 241 - 247

  摘要：

  DOI：

文献信息

• Solid-State ¹³C NMR Study of Accelerated-Sulfur-Vulcanized ¹³C-Labeled ENB−EPDM
  作者：R. Winters、W. Heinen、M. A. L. Verbruggen、J. Lugtenburg、M. van Duin、H. J. M. de Groot

  DOI：10.1021/ma001716h

  日期：2002.2.1

  Accelerated-sulfur-vulcanized C-13-labeled EPDM with and without carbon black and extender oil was analyzed using C-13 solid-state NMR to determine the chemical structure of the network. High-resolution solid-state C-13 NMR reveals that sulfur cross-linking takes place at the allylic positions of the ENB independent of the presence of carbon black and oil. From the integrated intensities of the C-13 signals, the conversion of ENB into a cross-link can be quantitatively determined during the vulcanization process. The ENB conversion for gumstock EPDM is similar to10% after 10 min of vulcanization at 150 degreesC, which is a typical optimum vulcanization time in commercial applications. In the presence of carbon black the ENB conversion is marginally faster and reaches similar to12% in 10 min, while a maximum conversion of similar to20% was obtained. The efficiency of the ENB conversion was similar to20% less at 150 degreesC and similar to30% less at 180 degreesC in the compound with carbon black and oil compared to the compound without carbon black and oil. The substitution at the 9-position of ENB is always preferred over each of the two 3-positions. In turn, the substitution on the 3-exo position is always preferred over the 3-endo position, which is different from earlier model studies. When the material is heated for extended periods (10-20 min), oxidation and reversion of the cross-links starts to occur. Reversion is enhanced upon a temperature increase to 180 degreesC and yields a 4,5,6,7-tetrahydro-4,7-methanobenzo[b]thiophene compound. The length of the sulfur bridge in compound A and B is rather short, i.e., I or 2.
• BOBYLEVA A. A.; BELIKOVA N. A.; KALINICHENKO A. N.; BARYSHNIKOV A. T.; DU+, ZH. ORGAN. XIMII, 1980, 16, HO 8, 1645-1653
  作者：BOBYLEVA A. A.、 BELIKOVA N. A.、 KALINICHENKO A. N.、 BARYSHNIKOV A. T.、 DU+

  DOI：——

  日期：——
• VEDEJS E.; MEIER G. P.; SNOBLE K. A. J., J. AMER. CHEM. SOC., 1981, 103, NO 10, 2823-2831
  作者：VEDEJS E.、 MEIER G. P.、 SNOBLE K. A. J.

  DOI：——

  日期：——
• BELIKOVA N. A.; LERMONTOV S. A.; PEXK T. I.; LIPPMAA EH. T.; PLATE A. F., ZH. ORGAN. XIMII, 1978, 14, HO 11, 2273-2280
  作者：BELIKOVA N. A.、 LERMONTOV S. A.、 PEXK T. I.、 LIPPMAA EH. T.、 PLATE A. F.

  DOI：——

  日期：——
• Belikova,N.A. et al., Journal of Organic Chemistry USSR (English Translation), 1974, vol. 10, p. 241 - 247
  作者：Belikova,N.A. et al.

  DOI：——

  日期：——