2,6-二甲基辛烷-2,6-二醇 | 54796-79-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2,6-二甲基辛烷-2,6-二醇
• 英文名称: 2,6-dimethyloctane-2,6-diol
• 英文别名: 2,6-Dimethylocta-2,6-diol
• CAS: 54796-79-1
• 化学式: C₁₀H₂₂O₂
• 分子量: 174.283
• InChiKey: RSQWSLAFEXDFJJ-UHFFFAOYSA-N

物化性质

• 熔点：
  47.0-49.5 °C
• 沸点：
  87-89 °C(Press: 0.1 Torr)
• 密度：
  0.923±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  12
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,6-二甲基辛烷-2,6-二醇 、 硫酸 生成 2-ethyl-2,6,6-trimethyl-tetrahydro-pyran 、 dihydromyrcene
  参考文献：
  名称：

  Naylor, Journal of the Chemical Society, 1947, p. 1108

  摘要：

  DOI：
• 作为产物：
  描述：

  香叶基氯 在 lithium aluminium tetrahydride 、 mercury(II) diacetate 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 6.6h， 生成 2,6-二甲基辛烷-2,6-二醇
  参考文献：
  名称：

  摘要：

  Usinggas chromatography with flame ionization detection (FID) and electroantennographic detection (EAD) in parallel, butanoic acid, skatole, and (E)-2,6-dimethyl-6-octen-2-ol were identified as constituents of the abdominal sex-attracting secretion of the male dung beetle, Kheper subaeneus, which reproducibly elicited EAD responses in male and female antennae. This is the first report of the occurrence of (E)-2,6-dimethyl-6-octen-2-ol as a natural product, for which the name (E)-subaeneol is proposed. In some experiments, a few other constituents of the secretion also gave reproducible responses in specific male and female antennae but did not elicit responses when the analyses were repeated with other antennae. The major volatile constituent of the secretion, identified as (S)-(C)-2,6-dimethyl-5-heptenoic acid, is one of these EAD-active compounds. Both this compound and (E)-2,6-dimethyl-6-octen-2-ol were synthesized from authentic starting materials for comparison with the natural products.

  DOI：

  10.1023/a:1021440220329

文献信息

• Non‐Heme‐Type Ruthenium Catalyzed Chemo‐ and Site‐Selective C−H Oxidation
  作者：Daiki Doiuchi、Tatsuya Nakamura、Hiroki Hayashi、Tatsuya Uchida

  DOI：10.1002/asia.202000134

  日期：2020.3.16

  Herein, we developed a Ru(II)(BPGA) complex that could be used to catalyze chemo- and site-selective C-H oxidation. The described ruthenium complex was designed by replacing one pyridyl group on tris(2-pyridylmethyl)amine with an electron-donating amide ligand that was critical for promoting this type of reaction. More importantly, higher reactivities and better chemo-, and site-selectivities were

  本文中，我们开发了可用于催化化学和位点选择性CH氧化的Ru（II）（BPGA）络合物。所描述的钌络合物是通过用给电子的酰胺配体取代三（2-吡啶基甲基）胺上的一个吡啶基而设计的，该供电子对促进这种类型的反应至关重要。更重要的是，对于使用顺式钌配合物而不是反式-钌配合物的反应，观察到更高的反应性以及更好的化学和位点选择性。该反应可用于将包括天然产物在内的各种有机底物的空间位阻较少的亚甲基和/或亚甲基CH键转化为有价值的醇或酮产物。
• Catalytic Highly Regioselective C–H Oxygenation Using Water as the Oxygen Source: Preparation of ¹⁷O/¹⁸O-Isotope-Labeled Compounds
  作者：Daiki Doiuchi、Tatsuya Uchida

  DOI：10.1021/acs.orglett.1c02812

  日期：2021.9.17

  We found that the oxygen atom of water is activated to iodosylbenzene derivatives via reversible hydrolysis of PhI(OOCR)2 and can be used to the oxygen source for ruthenium(bpga)-catalyzed site-selective C–H oxygenation. Ru(bpga)/PhI(OOCR)2/H2O system, sterically less bulky methinic and methylenic C–H bonds in various compounds can be converted to desired oxygen functional groups in a site-selective

  我们发现水的氧原子通过 PhI(OOCR) 2 的可逆水解被活化为碘基苯衍生物，并可用作钌 (bpga) 催化的位点选择性 C-H 氧化的氧源。Ru(bpga)/PhI(OOCR) 2 /H 2 O 系统，空间上体积较小的各种化合物中的次甲基和亚甲基C-H 键可以以位点选择性方式转化为所需的氧官能团。使用这种方法，可以以多克规模制备氧同位素标记的化合物，例如d -[3- 17 O/ 18 O]-甘露糖。
• Organocatalytic, Dioxirane-Mediated C–H Hydroxylation under Mild Conditions Using Oxone
  作者：William G. Shuler、Shea L. Johnson、Michael K. Hilinski

  DOI：10.1021/acs.orglett.7b02178

  日期：2017.9.15

  method has been an elusive goal. A trifluoromethyl ketone catalyst in combination with Oxone is shown to enable the first dioxirane-mediated catalytic hydroxylations that approximate the reactivity and selectivity of isolated dioxiranes. The mild reaction conditions allow for selective 3° hydroxylation and 2° oxidation and are tolerant of acid-sensitive functionality and electron-neutral arenes.

  二恶英类化合物是C（sp 3）-H羟基化反应中最有选择性和最有用的试剂之一，但是一般二恶英烷介导的催化方法的发展一直是个遥不可及的目标。已显示三氟甲基酮催化剂与Oxone结合可实现第一个由二氧杂环丁烷介导的催化羟基化反应，该反应可近似于分离出的二氧杂环戊烷的反应性和选择性。温和的反应条件允许选择性的3°羟基化和2°氧化，并且可以耐受酸敏感性官能团和电子中性芳烃。
• An Iminium Salt Organocatalyst for Selective Aliphatic C–H Hydroxylation
  作者：Daoyong Wang、William G. Shuler、Conor J. Pierce、Michael K. Hilinski

  DOI：10.1021/acs.orglett.6b01832

  日期：2016.8.5

  salt are presented. The method allows the selective organocatalytic hydroxylation of unactivated 3° C–H bonds at room temperature using hydrogen peroxide as the terminal oxidant. Hydroxylation of an unactivated 2° C–H bond is also demonstrated. Furthermore, improved functional group compatibility over other catalytic methods is reported in the form of selectivity for aliphatic C–H hydroxylation over alcohol

  介绍了亚胺盐催化脂肪族CH羟基化反应的第一个例子。该方法允许在室温下使用过氧化氢作为末端氧化剂对未活化的3°C–H键进行选择性有机催化羟基化。还显示了未活化的2°C–H键的羟基化作用。此外，据报道，与其他催化方法相比，官能团的相容性得到了改善，其形式为对脂肪族CHH羟基氧化的选择性高于对醇氧化的选择性。在初步的机理研究的基础上，提出了一种恶唑烷鎓类物质作为活性氧化剂。
• A Predictably Selective Palladium-Catalyzed Aliphatic C–H Oxygenation
  作者：Dmitry P. Lubov、Mikhail V. Shashkov、Andrey A. Nefedov、Konstantin P. Bryliakov

  DOI：10.1021/acs.orglett.2c04371

  日期：2023.3.10

  oxygenation of nonactivated aliphatic C(sp3)–H groups with peroxycarboxylic acids in the presence of palladium tris(pyridylmethyl)amine complex (0.6 mol %) is reported, providing the corresponding hydroxylated derivatives in up to 94% yields. The oxidation of 3° C–H groups occurs stereospecifically, with the catalyst system demonstrating extremely high sensitivity to electronic effects (adamantane oxidation:

  据报道，在钯三（吡啶基甲基）胺络合物（0.6 mol%）的存在下，未活化的脂肪族 C(sp 3 )–H 基团与过氧羧酸直接氧化，以高达 94% 的收率提供相应的羟基化衍生物。3° C–H 基团的氧化立体有择地发生，催化剂系统对电子效应表现出极高的敏感性（金刚烷氧化：3°:2° 高达 >300）。这表明天然来源的复杂分子的 3°-区域选择性氧化功能化的潜在应用。