3,3-Dimethyl-1-[4-(2-methyl-[1,3]dioxolan-2-yl)-butyl]-2-oxo-cyclohexanecarboxylic acid methyl ester | 160481-86-7

• 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: 3,3-Dimethyl-1-[4-(2-methyl-[1,3]dioxolan-2-yl)-butyl]-2-oxo-cyclohexanecarboxylic acid methyl ester
• CAS: 160481-86-7
• 化学式: C₁₈H₃₀O₅
• 分子量: 326.433
• InChiKey: HNFKIEKEAYMYOY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.25
• 重原子数：
  23.0
• 可旋转键数：
  6.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  61.83
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  3,3-Dimethyl-1-[4-(2-methyl-[1,3]dioxolan-2-yl)-butyl]-2-oxo-cyclohexanecarboxylic acid methyl ester 在 magnesium chloride 作用下， 以 二甲基亚砜 为溶剂， 反应 4.0h， 以43%的产率得到6-<5,5-(Ethylenedioxy)hexyl>-2,2-dimethylcyclohexanone
  参考文献：
  名称：

  Retinoids and Related Compounds. 17. Conformational Study of Retinochrome Chromophore: Synthesis of 8,18-Ethanoretinal and a New Retinochrome Analog

  摘要：

  In order to investigate the chromophore conformation around the trimethylcyclohexene ring in retinochrome, (all-E)-8,18-ethanoretinal (2), in which C-8 and C-18 positions of retinal 1 was connected by an ethylene group, was synthesized via the Dieckmann condensation of diester 6 from 2,2-dimethylcyclohexanone 7. This analog 2 was incorporated into aporetinochrome, forming a pigment with lambda(max) at 498 nm. Its opsin shift (2200 cm(-1)) is of the same order of magnitude as that of native retinochrome (2400 cm(-1)), suggesting that the conformations of both chromophores are fairly similar in the protein. In addition, MMX calculations indicate that the torsional angle around the 6-7 single bond in retinochrome might correspond to the allowable torsional angle in 8,18-ethanoretinal (2).

  DOI：

  10.1021/jo00102a015
• 作为产物：
  描述：

  2,2-二甲基环己酮 在 sodium hydride 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 42.25h， 生成 3,3-Dimethyl-1-[4-(2-methyl-[1,3]dioxolan-2-yl)-butyl]-2-oxo-cyclohexanecarboxylic acid methyl ester
  参考文献：
  名称：

  Retinoids and Related Compounds. 17. Conformational Study of Retinochrome Chromophore: Synthesis of 8,18-Ethanoretinal and a New Retinochrome Analog

  摘要：

  In order to investigate the chromophore conformation around the trimethylcyclohexene ring in retinochrome, (all-E)-8,18-ethanoretinal (2), in which C-8 and C-18 positions of retinal 1 was connected by an ethylene group, was synthesized via the Dieckmann condensation of diester 6 from 2,2-dimethylcyclohexanone 7. This analog 2 was incorporated into aporetinochrome, forming a pigment with lambda(max) at 498 nm. Its opsin shift (2200 cm(-1)) is of the same order of magnitude as that of native retinochrome (2400 cm(-1)), suggesting that the conformations of both chromophores are fairly similar in the protein. In addition, MMX calculations indicate that the torsional angle around the 6-7 single bond in retinochrome might correspond to the allowable torsional angle in 8,18-ethanoretinal (2).

  DOI：

  10.1021/jo00102a015