Ethyl (5R)-5-hydroxy-2-hexenoate | 154568-29-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: Ethyl (5R)-5-hydroxy-2-hexenoate
• 英文别名: ethyl (E,5R)-5-hydroxyhex-2-enoate
• CAS: 154568-29-3
• 化学式: C₈H₁₄O₃
• 分子量: 158.197
• InChiKey: ZVXVRZZECWGGIC-PTYLAXBQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.62
• 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：

  Ethyl (5R)-5-hydroxy-2-hexenoate 在 咪唑 、 二异丁基氢化铝 作用下， 以 乙醚 为溶剂， 生成 ethyl (R,E)-5-(tert-butyldimethylsilyloxy)hex-2-enoate
  参考文献：
  名称：

  基于钯催化甲酸还原裂解烯基环氧乙烷的 (-)-Colletol 手性合成

  摘要：

  (-)-colletol 的全合成是通过钯催化氢解旋光 (E)-4,5-epoxy-2-alkenoates 为 (E)-5-hydroxy-2-alkenoates 与甲酸作为关键步骤用于制备中间羟基酯链段。

  DOI：

  10.1246/cl.1993.1759
• 作为产物：
  描述：

  (4R,5R)-3-(5-Methyl-2-oxo-[1,3]dioxolan-4-yl)-acrylic acid ethyl ester 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 甲酸 、 三乙胺 、 三苯基膦 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以92%的产率得到Ethyl (5R)-5-hydroxy-2-hexenoate
  参考文献：
  名称：

  Tarchonanthuslactone的对映选择性合成。

  摘要：

  从山梨酸乙酯通过八个步骤实现了对映体异黄酮内酯的对映选择性合成。路线的不对称性是通过Sharpless不对称二羟基化反应引入的，从而可以进入任一对映体。该合成利用钯催化的还原和非对映选择性碱催化的乙缩醛形成作为关键步骤。土生黄酮内酯的吡喃环通过Still-烯烃化/内酯化序列建立。DCC介导的二氢咖啡酸的附着以19％的总收率完成了土生黄烷内酯的合成。

  DOI：

  10.1021/jo0163400

文献信息

• ORGANOCATALYTIC PROCESS FOR ASYMMETRIC SYNTHESIS OF DECANOLIDES
  申请人：Council of Scientific and Industrial Research

  公开号：US20150210665A1

  公开（公告）日：2015-07-30

  The present invention discloses organocatalytic process for asymmetric synthesis of highly enantioselective decanolide compounds in high yield with >99% ee. Further, the present invention disclose cost effective, improved organocatalytic process for asymmetric synthesis of highly enantioselective decanolides compounds from non-chiral, cheap, easily available raw materials.

  本发明公开了一种高效的有机催化过程，用于非对称合成高对映选择性的癸内酯化合物，产量高且对映体过量大于99%。此外，本发明还揭示了一种成本效益高、改进的有机催化过程，用于从非手性、便宜且易于获得的原料中非对称合成高对映选择性的癸内酯化合物。
• Asymmetric, Catalytic, and Direct Self-Aldol Reaction of Acetaldehyde Catalyzed by Diarylprolinol
  作者：Yujiro Hayashi、Sampak Samanta、Takahiko Itoh、Hayato Ishikawa

  DOI：10.1021/ol802438u

  日期：2008.12.18

  An asymmetric, catalytic, and direct self-aldol reaction of acetaldehyde was catalyzed by diarylprolinol in NMP, affording the trimer acetal, which was generated by the reaction of the self-aldol product with another acetaldehyde molecule in a moderate yield with good enantioselectivity. Acetal is the synthetic equivalent of the self-aldol product, which can be converted into other synthetically useful

  二芳基脯氨醇在NMP中催化乙醛的不对称，催化和直接的自身醛醇缩合反应，得到三聚体乙缩醛，它是通过自身醛醇产物与另一个乙醛分子以中等收率和良好的对映选择性反应而生成的。乙缩醛是自醛醇缩合产物的合成等同物，可以在一个罐中将其转化为其他合成有用的化合物，而不会损害对映选择性。
• De novo asymmetric syntheses of C-4-substituted sugars via an iterative dihydroxylation strategy
  作者：Md. Moinuddin Ahmed、George A. O’Doherty

  DOI：10.1016/j.carres.2006.03.024

  日期：2006.7

  highly efficient route to various C-4 substituted sugar lactones has been developed. The key to the overall transformation is the sequential osmium-catalyzed dihydroxylation reaction of substituted 2,4-dienoates and an allylic substitution at the C-4 position. When the Sharpless AD-mix procedure is used in a matched sense for the second dihydroxylation reaction, it results in an exceedingly diastereo-

  已经开发了一种短且高效的途径来制备各种C-4取代的糖内酯。总体转化的关键是取代的2，4-二烯酸酯的催化的二羟基化反应和C-4位置的烯丙基取代。当将Sharpless AD-mix程序以匹配的方式用于第二个二羟基化反应时，会导致几种C-4取代糖的非对映和对映选择性合成。
• Intramolecular conjugate addition of γ- and δ-trichloroacetimidoyloxy-α,β-unsaturated esters in an acyclic system
  作者：Yoshitaka Matsushima、Jun Kino

  DOI：10.1016/j.tet.2008.02.061

  日期：2008.4

  An intramolecular conjugate addition of γ- and δ-trichloroacetimidoyloxy-α,β-unsaturated esters, a new way to construct 1,2-amino or 1,3-amino alcohol moieties in an acyclic system, is described. Very concise synthesis of d-vancosamine and 3-epi-d-vancosamine derivatives was also achieved utilizing this methodology.

  描述了γ-和δ-三氯乙二酰亚胺基氧基-α，β-不饱和酯的分子内共轭加成，这是在无环体系中构建1,2-氨基或1,3-氨基醇部分的新方法。使用该方法还可以实现非常简明的d-vancosamine和3- epi - d- d-vancosamine衍生物的合成。
• An Enantioselective Synthesis of Benzylidene-Protected <i>syn</i>-3,5-Dihydroxy Carboxylate Esters via Osmium, Palladium, and Base Catalysis
  作者：Thomas J. Hunter、George A. O'Doherty

  DOI：10.1021/ol0156188

  日期：2001.4.1

  [GRAPHICS]The enantioselective syntheses of several protected syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral 1,3-dieneoates, The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form delta -hydroxy-1-enoates, The resulting delta -hydroxy-1-enoates are subsequently converted into benzylidene-protected 3,5-dihydroxy carboxylic esters in one step, The benzylidene-protected 3,5-dihydroxy carboxylic esters are produced in good overall yields (25% to 51%) and high enantiomeric excesses (80% to >95%).