5-hydroxy-4-methyl-3-octanone | 78106-05-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 5-hydroxy-4-methyl-3-octanone
• 英文别名: threo-5-hydroxy-4-methyl-3-octanone；anti-5-Hydroxy-4-methyl-3-octanone；(4S,5S)-5-hydroxy-4-methyloctan-3-one
• CAS: 78106-05-5；81743-00-2；108211-85-4；108211-86-5
• 化学式: C₉H₁₈O₂
• 分子量: 158.241
• InChiKey: VGGIVUORZFCUNO-APPZFPTMSA-N

物化性质

• 沸点：
  238.8±13.0 °C(Predicted)
• 密度：
  0.917±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-hydroxy-4-methyl-3-octanone 、 异丁醛 在 titanium(IV) tetrabutoxide 作用下， 以 二氯甲烷 为溶剂， 生成 rac-(1R,2S,3R)-1-propyl-3-hydroxy-2-methylpentyl isopropylcarboxylate 、 rac-(1R,2R,3R)-1-propyl-3-hydroxy-2-methylpentyl isopropylcarboxylate
  参考文献：
  名称：

  Toward Asymmetric Aldol-Tishchenko Reactions with Enolizable Aldehydes: Access to Defined Configured Stereotriads, Tetrads, and Stereopentads

  摘要：

  Asymmetric aldol-Tishchenko, reactions of enolizable aldehydes and ketones in the presence of chiral BINOLTi(OtBU)(2)/Cinchona alkaloids complexes are described. Different configurative outcomes of these reactions depend on an equilibration through a retro aldol/aldol sequence and can be influenced by the configurative architecture of substrates. The results are explained by means of transition state models and rate constants. These considerations offer a fine-tuning of diastereoselectivity in aldol-Tishchenko reactions. Extensions of this research give access to defined configured stereotriads, stereotetrads, and stereopentads.

  DOI：

  10.1021/jo9003635
• 作为产物：
  描述：

  3-戊酮 在 chiral B-[3,5-bis(trifluoromethyl)phenyl]oxazaborolidine lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 12.5h， 生成 5-hydroxy-4-methyl-3-octanone
  参考文献：
  名称：

  Scope and Limitations of Chiral B-[3,5-Bis(trifluoromethyl)phenyl]oxazaborolidine Catalyst for Use in the Mukaiyama Aldol Reaction

  摘要：

  A new chiral oxazaborolidine catalyst was prepared in situ from 3,5-bis(trifluoromethyl)phenylboron dichloride and N-(p-toluenesulfonyl)-(S)-tryptophan. This catalyst is much more active than Corey's original catalyst for the Mukaiyama aldol reaction of aldehydes with silyl enol ethers. The observed syn selectivities and re-face attack of silyl enol ethers on carbonyl carbon of aldehydes imply that the extended-transition state model is applicable.

  DOI：

  10.1021/jo001271v

文献信息

• Synthetic control leading to chiral compounds
  作者：Teruaki Mukaiyama、Nobuharu Iwasawa、Rodney W. Stevens、Toru Haga

  DOI：10.1016/s0040-4020(01)82423-6

  日期：1984.1

  A highly diastereoselective cross aldol reaction is developed using divalent tin enolates formed from stannous trifluoromethanesulfonate and carbonyl compounds. The reaction is extended to a highly enantioselective cross aldol reaction employing chiral diamines derived from (S)-proline as ligands.

  使用由三氟甲烷磺酸亚锡和羰基化合物形成的二价烯醇锡开发了高度非对映选择性的交叉醇醛缩合反应。使用衍生自（S）-脯氨酸的手性二胺作为配体，将反应扩展至高度对映选择性的交叉羟醛反应。
• STANNOUS TRIFLATE: A NEW ALDOL REACTION VIA DIVALENT TIN ENOLATES
  作者：Teruaki Mukaiyama、Rodney. W. Stevens、Nobuharu Iwasawa

  DOI：10.1246/cl.1982.353

  日期：1982.3.5

  Divalent tin enolates formed from stannous triflate and ketones react with carbonyl compounds under mild conditions to give the corresponding aldol products in good yields. In the case of cross-cou...

  由三氟甲磺酸亚锡和酮形成的二价锡烯醇化物在温和条件下与羰基化合物反应，以良好的产率得到相应的醛醇产物。在交叉的情况下...
• Diastereoselective Aldol Addition Using Boron Trichloride or Alkoxydichloroborane
  作者：Hak-Fun Chow、Dieter Seebach

  DOI：10.1002/hlca.19860690309

  日期：1986.5.7

  Under carefully controlled conditions, boron trichloride or alkoxydichloroborane/ethyldiisopropylamine in CH2Cl2 can be used to effect diastereoselective aldol additions of ethyl ketones to saturated, α, β-unsaturated, or aromatic aldehydes. The CC bond formation takes place with relative topicity ul (‘syn,’ configuration of the aldols), in selectivities ranging from 90 to 99% ds (Tables 1–3). Mechanistic

  在精心控制的条件下，CH 2 Cl 2中的三氯化硼或烷氧基二氯硼烷/乙基二异丙胺可用于将乙基酮进行非对映选择性的醛醇缩合，形成饱和，α，β-不饱和或芳族醛。CC键的形成具有相对局部性ul（醛醇的“ syn ”构型），选择性范围为90％到99％ds（表1-3）。讨论了反应的机械方面。
• A NEW METHOD FOR THE REGIO- AND STEREOSELECTIVE SYNTHESIS OF ALDOLS FROM α-BROMOKETONE AND CARBONYL COMPOUNDS BY USING METALLIC TIN
  作者：Taira Harada、Teruaki Mukaiyama

  DOI：10.1246/cl.1982.467

  日期：1982.4.5

  Tin(II) enolates, generated in situ by the oxidative addition of α-bromoketones to metallic tin, react with a variety of carbonyl compounds under mild conditions to give the corresponding aldols in good yields. In the case of reactions of the enolate resulted from α-substituted α-bromoketone with aldehydes, remarkably high erythro-selectivities are attained.

  锡 (II) 烯醇化物通过 α-溴酮与金属锡的氧化加成原位生成，在温和条件下与各种羰基化合物反应，以良好的收率得到相应的醛醇。在由 α-取代的 α-溴酮与醛产生的烯醇反应的情况下，获得了非常高的赤型选择性。
• Enantioselective aldol condensations: The use of ketone boron enolates with chiral ligands attached to boron.
  作者：Ian Paterson、M.Anne Lister、Cynthia K McClure

  DOI：10.1016/s0040-4039(00)85065-0

  日期：1986.1

  Aldol condensation between diethylketone and simple aldehydes using(lpc)2BOTf/iPr2NEt in CH2Cl2 gives syn-adducts in good ee (66–90%) and with high diastereoselectivity(≥90%). Other chiral dialkylboron triflate reagents examined give lower ees.

  使用（LPC）和二乙基醛简单之间的醛醇缩合2 BOTf /我镨2净在CH 2氯2给出顺式良好EE（66-90％）中，用高非对映选择性（≥90％）-adducts。检查的其他手性二烷基硼酸三氟甲磺酸盐试剂可提供较低的ee。