5-(2-oxocyclohex-3-en-1-yl)pentanal | 111940-36-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-(2-oxocyclohex-3-en-1-yl)pentanal
• CAS: 111940-36-4
• 化学式: C₁₁H₁₆O₂
• 分子量: 180.247
• InChiKey: PXPNCICPVXDWND-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.28
• 重原子数：
  13.0
• 可旋转键数：
  5.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  34.14
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  5-(2-oxocyclohex-3-en-1-yl)pentanal 在 甲基磺酰氯 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 lithium hexamethyldisilazane 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 14.5h， 生成 (1R*,6R*,7S*,8R*)-7-(Methoxycarbonyl)-9-methylenetricyclo<6.2.2.0^1,6>dodecan-10-one
  参考文献：
  名称：

  Stereoselective Formation of Three Carbon-Carbon Bonds by Cascade Reaction with Enolate Anion: Synthesis of Tricyclo[6.2.2.01,6]dodecane and Tricyclo[5.3.1.03,8]undecane Derivatives

  摘要：

  Reaction of 6-[5(E)-6-(methoxycarbonyl)hex-5-enyl]-2-cyclohexen-1-one (1) with LHMDS, followed by one-pot treatment with CH2O, resulted in a cascade Michael-Michael-aldol reaction, producing hydroxymethylated tricyclo[6.2.2.0(1,6)]dodecane 3. The methylated tricyclo[5.3.1.0(3,8)]undecane 21 was obtained by a Michael-Michael-substitution reaction, performed by reaction of 5-[4(E)-5(methoxycarbonyl)pent-4-enyl]-2-methyl-2-cyclohexen-1-one (11) with LHMDS and one-pot treatment with MeI in the presence of HMPA. Michael-Michael-aldol reactions of 11 were also carried out with LHMDS followed by several aldehydes to provide tricyclo[5.3.1.0(3,8)]undecane derivatives 22, 23, and 24, respectively. The importance of intramolecular coordination wit h lithium for the double Michael reaction was supported by an experiment utilizing the corresponding (Z)-isomer 13.

  DOI：

  10.1021/jo00099a034
• 作为产物：
  描述：

  6-(5-羟基戊基)环己-2-烯-1-酮 在 重铬酸吡啶 、 4 A molecular sieve 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 5-(2-oxocyclohex-3-en-1-yl)pentanal
  参考文献：
  名称：

  Stereoselective Formation of Three Carbon-Carbon Bonds by Cascade Reaction with Enolate Anion: Synthesis of Tricyclo[6.2.2.01,6]dodecane and Tricyclo[5.3.1.03,8]undecane Derivatives

  摘要：

  Reaction of 6-[5(E)-6-(methoxycarbonyl)hex-5-enyl]-2-cyclohexen-1-one (1) with LHMDS, followed by one-pot treatment with CH2O, resulted in a cascade Michael-Michael-aldol reaction, producing hydroxymethylated tricyclo[6.2.2.0(1,6)]dodecane 3. The methylated tricyclo[5.3.1.0(3,8)]undecane 21 was obtained by a Michael-Michael-substitution reaction, performed by reaction of 5-[4(E)-5(methoxycarbonyl)pent-4-enyl]-2-methyl-2-cyclohexen-1-one (11) with LHMDS and one-pot treatment with MeI in the presence of HMPA. Michael-Michael-aldol reactions of 11 were also carried out with LHMDS followed by several aldehydes to provide tricyclo[5.3.1.0(3,8)]undecane derivatives 22, 23, and 24, respectively. The importance of intramolecular coordination wit h lithium for the double Michael reaction was supported by an experiment utilizing the corresponding (Z)-isomer 13.

  DOI：

  10.1021/jo00099a034

文献信息

• Ihara, Masataka; Toyota, Masahiro; Abe, Mariko, Journal of the Chemical Society. Perkin transactions I, 1986, p. 1543 - 1550
  作者：Ihara, Masataka、Toyota, Masahiro、Abe, Mariko、Ishida, Yohhei、Fukumoto, Keiichiro、Kametani, Tetsuji

  DOI：——

  日期：——
• Ihara Masataka, Makita Kei, Tokunaga Yuji, Fukumoto Keiichiro, J. Org. Chem., 59 (1994) N 20, S 6008-6013
  作者：Ihara Masataka, Makita Kei, Tokunaga Yuji, Fukumoto Keiichiro

  DOI：——

  日期：——