ethyl 4-(cyclopent-1-en-1-yl)butanoate | 66050-54-2

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: ethyl 4-(cyclopent-1-en-1-yl)butanoate
• 英文别名: 4-(1-Cyclopentenyl)buttersaeureaethylester；Ethyl 4-(cyclopenten-1-yl)butanoate
• CAS: 66050-54-2
• 化学式: C₁₁H₁₈O₂
• 分子量: 182.263
• InChiKey: SNOAGNJACCIABJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  13
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  ethyl 4-(cyclopent-1-en-1-yl)butanoate 在 吡啶 、 1H-咪唑-1-磺酰叠氮 、 bis{rhodium[3,3'-(1,3-phenylene)bis(2,2-dimethylpropanoic acid)]} 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 二氯甲烷 、 1,2-二氯乙烷 、 乙腈 为溶剂， 反应 11.5h， 生成 4-oxooctahydro-1H-cyclopenta[1,3]cyclopropa[1,2]benzene-3b-carbonitrile
  参考文献：
  名称：

  α-Diazo-β-ketonitriles: Uniquely Reactive Substrates for Arene and Alkene Cyclopropanation

  摘要：

  An investigation of the intramolecular cyclopropanation reactions of alpha-diazo-beta-ketonitriles is reported. These studies reveal that alpha-diazo-beta-ketonitriles exhibit unique reactivity in their ability to undergo arene cyclopropanation reactions; other similar acceptor acceptor-substituted diazo substrates instead produce mixtures of C-H insertion and dimerization products. alpha-Diazo-beta-ketonitriles also undergo highly efficient intramolecular cyclopropanation of tri- and tetrasubstituted alkenes. In addition, the alpha-cyano-alpha-ketocyclopropane products are demonstrated to serve as substrates for S(N)2, S(N)2', and aldehyde cycloaddition reactions.

  DOI：

  10.1021/ja401610p
• 作为产物：
  描述：

  1-(硝基甲基)环戊烯 在 偶氮二异丁腈 、 三正丁基氢锡 、 四甲基胍 作用下， 以 甲苯 、 乙腈 为溶剂， 反应 0.5h， 生成 ethyl 4-(cyclopent-1-en-1-yl)butanoate
  参考文献：
  名称：

  New synthetic methods. Conjugate addition of alkyl groups to electron deficient olefins with nitroalkanes as alkyl anion equivalents

  摘要：

  DOI：

  10.1021/jo00220a003

文献信息

• Carruthers,W.; Orridge,A., Journal of the Chemical Society. Perkin transactions I, 1977, p. 2411 - 2416
  作者：Carruthers,W.、Orridge,A.

  DOI：——

  日期：——
• ONO, NOBORU;KAMIMURA, AKIO;MIYAKE, HIDEYOSHI;HAMAMOTO, ISAMI;KAJI, ARITSU+, J. ORG. CHEM., 1985, 50, N 20, 3692-3698
  作者：ONO, NOBORU、KAMIMURA, AKIO、MIYAKE, HIDEYOSHI、HAMAMOTO, ISAMI、KAJI, ARITSU+

  DOI：——

  日期：——
• New synthetic methods. Conjugate addition of alkyl groups to electron deficient olefins with nitroalkanes as alkyl anion equivalents
  作者：Noboru Ono、Akio Kamimura、Hideyoshi Miyake、Isami Hamamoto、Aritsune Kaji

  DOI：10.1021/jo00220a003

  日期：1985.10
• α-Diazo-β-ketonitriles: Uniquely Reactive Substrates for Arene and Alkene Cyclopropanation
  作者：Roger R. Nani、Sarah E. Reisman

  DOI：10.1021/ja401610p

  日期：2013.5.15

  An investigation of the intramolecular cyclopropanation reactions of alpha-diazo-beta-ketonitriles is reported. These studies reveal that alpha-diazo-beta-ketonitriles exhibit unique reactivity in their ability to undergo arene cyclopropanation reactions; other similar acceptor acceptor-substituted diazo substrates instead produce mixtures of C-H insertion and dimerization products. alpha-Diazo-beta-ketonitriles also undergo highly efficient intramolecular cyclopropanation of tri- and tetrasubstituted alkenes. In addition, the alpha-cyano-alpha-ketocyclopropane products are demonstrated to serve as substrates for S(N)2, S(N)2', and aldehyde cycloaddition reactions.