(4R)-4-羟基-2-己酮 | 106353-47-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: (4R)-4-羟基-2-己酮
• 中文别名: 2-己酮,4-羟基-,(4R)-(9CI)
• 英文名称: (R)-4-hydroxyhexan-2-one
• 英文别名: (4R)-4-hydroxyhexan-2-one
• CAS: 106353-47-3
• 化学式: C₆H₁₂O₂
• 分子量: 116.16
• InChiKey: ODWYTDVNWFBCLV-ZCFIWIBFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  8
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (R)-(E)-3-hexen-2-ol 在 potassium tetrachloropalladate(II) 盐酸 、 对苯醌 作用下， 生成 (4R)-4-羟基-2-己酮
  参考文献：
  名称：

  Palladium(II)-Catalyzed Exchange and Isomerization Reactions. 17. Exchange of Chiral Allyl Alcohols with Hydroxide, Methoxide, and Phenyl at High [Cl^-]. Stereochemistry of the Wacker Reaction

  摘要：

  At high [Cl-] (> 2.0 M), PdCl42- catalyzes the exchange of chiral allylic alcohols with hydroxy, methoxy, and phenyl to give chiral allyl-substituted olefins. With unsymmetrical olefins, isomerization occurs along with exchange. The hydroxyl exchange occurs in aqueous solution while the other exchanges are carried out in methanol solution. At low [Cl-] (0.1 M) oxidation to the corresponding beta-hydroxy-, methoxy-, and phenyl-substituted carbonyl compounds occurred. The absolute configurations of the oxidation and exchange products should be the same if the same mode of addition to the Pd(II)-pi-complex is operative. The absolute configurations of the oxidation and exchange products for the phenylation reaction were the same, while for hydroxy and methoxy they were different. This result indicates methanol and water must have different stereochemistries of addition at high and low [Cl-]. Thus, previous studies showing anti hydroxypalladation at high [Cl-] are not valid indicators of the stereochemistry at low [Cl-]. If anti addition occurs at high [Cl-], the addition must be syn at low [Cl-].

  DOI：

  10.1021/jo9906274

文献信息

• Preparation of Chiral β-Hydroxyketones by Aldol-type Condensation of Chiral<i>p</i>-Tolylsulfinylmethyl Ketones
  作者：Fernand Schneider、Roland Simon

  DOI：10.1055/s-1986-31715

  日期：——

  Chiral ß-hydroxyketones 7 with fair e.e. were prepared by treating newly prepared optically pure p-tolylsulfinylmethyl ketones 4 with t-butyl-magnesium bromide and aldehydes 5 followed by desulfurization with aluminium amalgam.

  通过将新制备的光学纯对甲苯亚磺酰甲基酮4与叔丁基溴化镁和醛5反应，随后用铝汞齐进行脱硫，合成了具有适当对映体过量值的手性ß-羟基酮7。
• Contrasting steric effects of the ketones and aldehydes in the reactions of the diisopinocampheyl enolborinates of methyl ketones with aldehydes
  作者：P.Veeraraghavan Ramachandran、Wei-chu Xu、Herbert C. Brown

  DOI：10.1016/0040-4039(96)00969-0

  日期：1996.7

  representative series of aldehydes, both of differing steric requirements provides aldols whose enantiomeric purities depend on the steric requirements of both the ketones and the aldehydes. This study has shown that increasing the steric requirements of the R group in the ketones has a pernicious effect on the ee, while increasing the steric requirements of the R group in the aldehydes exerts a beneficial

  用具有代表性的一系列醛来处理具有代表性的一系列醛的具有代表性的甲基酮的二异硫代樟脑硼酸酯，提供了对映体纯度取决于酮和醛的立体要求的羟醛。这项研究表明，增加酮中R基团的空间需求量对ee具有有害作用，而增加醛基中R基团的空间需求量则对ee具有有益作用。
• Complete Switch of Reaction Specificity of an Aldolase by Directed Evolution In Vitro: Synthesis of Generic Aliphatic Aldol Products
  作者：Sebastian Junker、Raquel Roldan、Henk-Jan Joosten、Pere Clapés、Wolf-Dieter Fessner

  DOI：10.1002/anie.201804831

  日期：2018.8.6

  as competing nucleophiles. D6 turned out to be the key residue that enabled activity with non‐hydroxylated nucleophiles. Altogether 25 single‐ and double‐site variants (D6X and D6X/T26X) were discovered that show useful synthetic activity and a varying preference for ketone or aldehyde as the aldol nucleophiles. Remarkably, all of the novel variants had completely lost their native activity for cleavage

  对果糖-6-磷酸醛缩酶进行了结构引导工程，以将其底物混杂性扩展到脂肪族亲核试剂，即未取代的烷酮和烷醛。创建了一个针对残基 D6、T26 和 N28 的“智能”组合文库，这些残基在亲核碳原子周围形成结合袋。通过高性能薄层色谱法进行双选择性筛选，可以同时测定总活性以及优先选择丙酮与丙醛作为竞争亲核试剂。D6 被证明是能够与非羟基化亲核试剂发生反应的关键残基。总共发现了 25 个单位点和双位点变体（D6X 和 D6X/T26X），它们表现出有用的合成活性，并且对酮或醛作为羟醛亲核试剂具有不同的偏好。值得注意的是，所有新变体都完全失去了裂解 6-磷酸果糖的天然活性。
• Process for the Synthesis of Hmg-Coa Reductase Inhibitors
  申请人：Casar Zdenko

  公开号：US20080300406A1

  公开（公告）日：2008-12-04

  A novel synthesis of statins uses Wittig reaction of a heterocyclic core of statin with a lactonized side chain already possessing needed stereochemistry. Any separation of diastereoisomers is performed early in the course of synthesis.

  一种新型的他汀类药物的合成方法，使用了威廉逊烷基化反应，将他汀类药物的杂环核与早已具备所需立体化学的内酯化侧链进行反应。在合成的早期就对对映异构体进行了分离。
• FRUCTOSE-6-PHOSPHATE ALDOLASE VARIANTS FOR ALDOL CARBOLIGATIONS
  申请人：Consejo Superior de Investigaciones Científicas (CSIC)

  公开号：EP3388518A1

  公开（公告）日：2018-10-17

  The invention provides new and alternative fructose-6-phosphate aldolase (FSA) variants which enable the production of optically active building blocks with high chemoselectivity and stereoselectivity using aldehydes as starting material in aldol carboligation reactions, while avoiding the by-product formation and subsequent reactions.

  本发明提供了新的和可替代的 6-磷酸果糖醛缩酶（FSA）变体，这些变体能够在醛缩反应中使用醛作为起始原料，以高化学选择性和立体选择性生产光学活性构筑物，同时避免副产物的形成和后续反应。