S-3-hydroxyhexanoic Acid methyl ester | 66997-70-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羟基酸及其衍生物
• 英文名称: S-3-hydroxyhexanoic Acid methyl ester
• 英文别名: (S)-3-Hydroxyhexansaeure-methylester；methyl (3S)-3-hydroxyhexanoate；(S)-methyl 3-hydroxyhexanoate；(S)-methyl 3-hydroxyhexenoate；methyl (S)-3-hydroxyhexanoate；(S)-3-hydroxy-hexanoic acid methyl ester
• CAS: 66997-70-4
• 化学式: C₇H₁₄O₃
• 分子量: 146.186
• InChiKey: ACCRBMDJCPPJDX-LURJTMIESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  10
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  S-3-hydroxyhexanoic Acid methyl ester 在 sodium hydroxide 作用下， 以 甲醇 为溶剂， 以97%的产率得到(S)-3-hydroxyhexanoic acid
  参考文献：
  名称：

  Cysteine- and serine-derived thiazolidinethiones and oxazolidinethiones as efficient chiral auxiliaries in aldol condensations

  摘要：

  DOI：

  10.1021/jo00387a016
• 作为产物：
  描述：

  (1'R,3S)-3-Hydroxy-N-(2-hydroxy-1-phenylethyl)-hexanamid 在 氢氧化钾 作用下， 以 甲醇 、 乙醚 、 水 为溶剂， 反应 15.0h， 生成 S-3-hydroxyhexanoic Acid methyl ester
  参考文献：
  名称：

  Devant, Ralf; Braun, Manfred, Chemische Berichte, 1986, vol. 119, # 7, p. 2191 - 2207

  摘要：

  DOI：

文献信息

• Chiral Surfactant-Type Catalyst: Enantioselective Reduction of Long-Chain Aliphatic Ketoesters in Water
  作者：Zechao Lin、Jiahong Li、Qingfei Huang、Qiuya Huang、Qiwei Wang、Lei Tang、Deying Gong、Jun Yang、Jin Zhu、Jingen Deng

  DOI：10.1021/acs.joc.5b00241

  日期：2015.5.1

  ligands were designed and synthesized. The rhodium complexes with the ligands were applied to the asymmetric transfer hydrogenation of broad range of long-chained aliphatic ketoesters in neat water. Quantitative conversion and excellent enantioselectivity (up to 99% ee) was observed for α-, β-, γ-, δ- and ε-ketoesters as well as for α- and β-acyloxyketone using chiral surfactant-type catalyst 2. The CH/π

  设计并合成了一系列两亲性配体。具有配体的铑配合物被用于纯水中宽范围的长链脂族酮酸酯的不对称转移氢化。使用手性表面活性剂型催化剂2观察到α-，β-，γ-，δ-和ε-酮酸酯以及α-和β-酰氧基酮的定量转化率和出色的对映选择性（高达99％ee）。在金属硅油核中，催化剂与底物之间的长脂肪链之间的CH /π相互作用和长脂肪链的强疏水相互作用在催化过渡态中起着关键作用。胶束中金属催化位点与核心的疏水微环境之间的协同作用有助于实现高立体选择性。
• Efficient Enantioselective Synthesis of Methyl Esters of α-Unsubstituted β-Hydroxy Acids via Asymmetric Aldol-Type Addition of Chiral Boron Enolates of (Methylthio)acetic Acid to Aldehydes
  作者：Francesco Fringuelli、Oriana Piermatti、Ferdinando Pizzo

  DOI：10.1055/s-1996-4365

  日期：1996.10

  The aldol-type addition of chiral boron enolates of (methylthio)-acetic acid to various aldehydes gives α-(methylthio)-β-hydroxy acids stereoselectively and with good yields. The desulfenylation of methyl esters of the condensation adducts allows methyl esters of α-unsubstituted β-hydroxy acids to be obtained with high ee. Derivatives of (+)-2- and (+)-3-carene were used as chiral inducers. The enantioselectivity and diastereoselectivity of the aldol-type addition are efficaciously controlled by the SMe group in the α-position of the enolate and by the type of chiral ligand used.

  (甲硫基)乙酸的手性硼烯醇盐与各种醛进行aldol型加成反应，可以立体选择性地并以良好产率得到α-(甲硫基)-β-羟基酸。通过脱硫作用，可以将缩合加合物的甲酯转化为高对映体纯度的α-未取代-β-羟基酸的甲酯。使用(+)-2-蒎烯和(+)-3-蒎烯的衍生物作为手性诱导剂。aldol型加成的对映选择性和非对映选择性有效地受到烯醇盐α-位上的SMe基团和所用手性配体类型的控制。
• Over 98% Optical Yield Achieved by a Heterogeneous Catalysis. Substrate Design and Analysis of Enantio-Differentiating Factors of Tartaric Acid-Modified Raney Nickel Hydrogenation
  作者：Takashi Sugimura、Satoshi Nakagawa、Akira Tai

  DOI：10.1246/bcsj.75.355

  日期：2002.2

  Tartaric acid-modified Raney nickel (TA-MRNi) is a chiral heterogeneous catalyst for the hydrogenation of prochiral ketones. An optical yield (OY) of 86% with methyl acetoacetate (1) as a substrate was improved to 94–96% by employing β-keto esters having a proper bulkiness at the γ -position. The γ -bulkiness effect contributes to a high intrinsic enantio-differentiating ability (factor-i) of the TA-MRNi catalysis. Through the study, we found the best substrate, γ -cyclopropyl-β-keto ester, the hydrogenation of which resulted in 98.6% OY. This further improvement in the OY was ascribed to a smaller contribution of non-enantio-differentiating hydrogenation (N-site catalysis) due to the substrate-specific activation of the enantio-differentiating hydrogenation by the chiral modifier. The OY of the hydrogenation of 1 was analyzed by comparing with well-behaved β-keto esters, and the contribution of the factor-i and the N-site to the OY value was evaluated to deduce the origin of the enantiodifferentiation.

  酒石酸改性的Raney镍(TA-MRNi)是一种手性非均相催化剂，用于前手性酮的氢化反应。以乙酰乙酸甲酯(1)为底物，光学收率(OY)为86%，当采用在γ位置具有适当体积的β-酮酯时，OY提高至94-96%。γ体积效应有助于TA-MRNi催化剂具有高固有的手性区分能力(因子-i)。通过研究，我们发现最佳底物，即γ-环丙基-β-酮酯，其氢化反应的光学收率达到了98.6%。这一光学收率的进一步提升归因于底物特定的手性修饰剂激活手性区分氢化反应，从而减少了非手性区分氢化(N-位点催化)的贡献。通过与表现良好的β-酮酯进行比较，分析了1氢化反应的OY，并评估了因子-i和N-位点对OY值的贡献，从而推导出手性区分的起源。
• Preparation of Enantiomerically Pure ?-Silylcarboxyl Derivatives by Asymmetric 1,4-Addition toN-Enoyl-sultams. Preliminary Communication
  作者：Wolfgang Oppolzer、Robert J. Mills、Werner Pachinger、Thomas Stevenson

  DOI：10.1002/hlca.19860690703

  日期：1986.10.29

  of organocopper reagents to camphor-derived, conjugated N-enoyl-sultams gave saturated and olefinic β-silylcarboxyl derivatives with high diastereodifferentiation. Nondestructive removal of the chiral auxiliary followed by oxidative Si-C bond cleavage furnished enantiomerically pure acetate-derived aldols and propionate-derived ‘anti’ -aldols (via silyl-directed α-methylation).

  EtAlCl 2促进有机铜试剂向樟脑衍生的，共轭的N-烯酰基-杜鹃花中的添加，得到具有高非对映异构性的饱和和烯属的β-甲硅烷基羧基衍生物。非破坏性地除去手性助剂，然后氧化Si-C键裂解，提供了对映体纯的乙酸酯衍生的醛醇和丙酸酯类衍生的“抗”-醛醇（通过甲硅烷基定向的α-甲基化）。
• Efficient Amide-Directed Catalytic Asymmetric Hydroboration
  作者：Sean M. Smith、Nathan C. Thacker、James M. Takacs

  DOI：10.1021/ja710492q

  日期：2008.3.1

  (>95%) and enantioselective (93-99% ee) rhodium-catalyzed hydroboration with pinacolborane (PinBH) using simple chiral monophosphite or phosphoramidite ligands in combination with Rh(nbd)2BF4. The most effective ligands identified are phosphoramidite 4, derived from BINOL and N-methylaniline, and phosphite 5c, prepared from the (4'-tert-butyl)phenyl TADDOL analogue and phenol. For example, (E)-3-hexenoic

  使用简单的手性单亚磷酸酯或亚磷酰胺配体与频哪醇硼烷 (PinBH) 结合，一系列无环 β, γ-不饱和酰胺显示出高度区域 (>95%) 和对映选择性 (93-99% ee) 铑催化硼氢化反应Rh(nbd)2BF4。确定的最有效的配体是亚磷酰胺 4，衍生自 BINOL 和 N-甲基苯胺，以及亚磷酸酯 5c，由（4'-叔丁基）苯基 TADDOL 类似物和苯酚制备。例如，(E)-3-己烯酸苯基酰胺 ((E)-1) 与 PinBH (0.5 mol % Rh(nbd)2BF4，1.1 mol % BINOL 衍生的亚磷酰胺 4，THF，40 摄氏度进行铑催化硼氢化, 2 h) 得到中间体硼酸酯，在用碱性过氧化氢氧化后得到 β-羟基酰胺，(S)-3-羟基己酸苯酰胺 ((S)-3)，以良好的收率 (80%) 和高对映体纯度 (99% ee)。异构二取代 (E)- 和 (Z)- 烯烃产生几乎相同的结果，