2-methyl-2-(methylthio)nonane

• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 英文名称: 2-methyl-2-(methylthio)nonane
• 化学式: C₁₁H₂₄S
• 分子量: 188.378
• InChiKey: SZIRRQUNSWSFAQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.49
• 重原子数：
  12.0
• 可旋转键数：
  7.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为产物：
  描述：

  2-壬酮 在 lithium aluminium tetrahydride 、 正丁基锂 、 氢溴酸 、 zinc sulfide 、 lithium bromide 作用下， 以 四氢呋喃 、 乙醚 、 正己烷 、 二氯甲烷 、 水 为溶剂， 反应 16.5h， 生成 2-methyl-2-(methylthio)nonane
  参考文献：
  名称：

  Structure–Odor Correlations in Homologous Series of Alkanethiols and Attempts To Predict Odor Thresholds by 3D-QSAR Studies

  摘要：

  Homologous series of alkane-1-thiols, alkane-2-thiols, alkane-3-thiols, 2-methylalkane-1-thiols, 2-methylalkane-3-thiols, 2-methylalkane-2-thiols, and alkane-1,?-dithiols were synthesized to study the influence of structural changes on odor qualities and odor thresholds. In particular, the odor thresholds were strongly influenced by steric effects: In all homologous series a minimum was observed for thiols with five to seven carbon atoms, whereas increasing the chain length led to an exponential increase in the odor threshold. Tertiary alkanethiols revealed clearly lower odor thresholds than found for primary or secondary thiols, whereas neither a second mercapto group in the molecule nor an additional methyl substitution lowered the threshold. To investigate the impact of the SH group, odor thresholds and odor qualities of thiols were compared to those of the corresponding alcohols and (methylthio)alkanes. Replacement of the SH group by an OH group as well as S-methylation of the thiols significantly increased the odor thresholds. By using comparative molecular field analysis, a 3D quantitative structureactivity relationship model was created, which was able to simulate the odor thresholds of alkanethiols in good agreement with the experimental results. NMR and mass spectrometric data for 46 sulfur-containing compounds are additionally supplied.

  DOI：

  10.1021/jf506135c