4-mercapto-2-heptano | 1423729-37-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4-mercapto-2-heptano
• 英文别名: (2R,4S)-4-mercapto-2-heptanol；(2R,4S)-4-sulfanylheptan-2-ol
• CAS: 1423729-37-6
• 化学式: C₇H₁₆OS
• 分子量: 148.269
• InChiKey: SWMAFCJRQBAZLB-RQJHMYQMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  9
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  21.2
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-acetylthio-2-heptanone 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 生成 4-mercapto-2-heptano 、 (2S,4S)-4-mercapto-2-heptanol
  参考文献：
  名称：

  Influence of the Stereochemistry on the Sensory Properties of 4-Mercapto-2-heptanol and Its Acetyl-Derivatives

  摘要：

  4-Mercapto-2-heptanol, previously described in cooked bell pepper, was used to determine the impact of the stereochemistry on the sensory properties of a thiol with a 1,3-oxygen-sulfur functionality. In addition, the acetyl-derivatives 4-acetylthio-2-heptanol, 4-mercapto-2-heptyl acetate and 4-acetylthio-2-heptyl acetate were investigated. The synthesized stereoisomers were separated via capillary gas chromatography (GC) using chiral stationary phases. The GC orders of elution were determined by assigning the absolute configurations via NMR analysis in combination with lipase-catalyzed kinetic resolutions. Odor thresholds and odor properties were determined by means of GC/Olfactometry. The data revealed that the sensory properties of the investigated compounds are not only significantly influenced by the acetylation but also by the configurations of the two asymmetric centers.

  DOI：

  10.1021/jf305447e

文献信息

• Analysis and Sensory Evaluation of the Stereoisomers of a Homologous Series (C5–C10) of 4-Mercapto-2-alkanols
  作者：Svenja Nörenberg、Christiane Kiske、Bastian Reichardt、Verena Andelfinger、Anne Pfeiffer、Franziska Schmidts、Wolfgang Eisenreich、Karl-Heinz Engel

  DOI：10.1021/acs.jafc.7b03543

  日期：2017.10.11

  the medium-chain homologues (C7–C9) of the 4-mercapto-2-alkanol stereoisomers. Except for the C5 homologue, the lowest odor thresholds were determined for the (2R,4R)-configured stereoisomers. The variability in odor qualities was mainly determined by the chain length. None of the 4-mercapto-2-alkanol stereoisomers showed consistent odor qualities for all homologues.

  同源的4-巯基-2-链烷醇系列（C5-C10）用于研究立体化学对一类具有1,3-氧-硫官能度的天然存在的多官能硫醇的感官特性的影响。立体异构体是通过外消旋混合物的合成和随后的脂肪酶催化的动力学拆分而获得的。立体异构体的分析分离是通过使用手性固定相的毛细管气相色谱法（GC）实现的。通过NMR分析确定绝对构型。通过GC /嗅觉测定法进行的感官评估显示，4-巯基-2-链烷醇立体异构体的中链同系物（C7-C9）的气味阈值极小。除C5同源物外，（2 R，4 R）-配置的立体异构体。气味质量的变化主要由链长决定。对于所有同系物，4-巯基-2-链烷醇立体异构体均未显示出一致的气味品质。