Ethyl 2-hydroxy-4-methylidenehex-5-enoate | 27995-18-2

• 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 2-hydroxy-4-methylidenehex-5-enoate
• 英文别名: ethyl 2-hydroxy-4-methylidenehex-5-enoate
• CAS: 27995-18-2
• 化学式: C₉H₁₄O₃
• 分子量: 170.208
• InChiKey: MSWIRCVYZDZCHU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  12
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  乙醛酸乙酯 、 天然橡胶 在 四氯化锡 作用下， 以 二氯甲烷 为溶剂， 生成 Ethyl 2-hydroxy-4-methylidenehex-5-enoate
  参考文献：
  名称：

  Klimova,E.I. et al., Journal of Organic Chemistry USSR (English Translation), 1970, vol. 6, # 3, p. 411 - 416

  摘要：

  DOI：

文献信息

• Le Triflate de Bismuth(III) Comme Catalyseur Dans la Reaction de Carbonyl-Diels-Alder
  作者：Adyl Bernard、Bernard Garrigues

  DOI：10.1080/10426500210673

  日期：2002.4.1

  In presence of bismuth(III) triflate, a carbonylated electrophile (ethyl mesoxalate or glyoxylate) and usual diene led selectively (60-100) the hetero carbonyl-Diels-Alder reaction with the ene reaction product. Bi(OTf) 3 exhibits strong catalytic activity and reacts under mild conditions. En présence de triflate de bismuth(III) le mésoxalate et le glyoxylate d'éthyle réagissent avec des diènes usuels

  在三氟甲磺酸铋 (III) 存在下，羰基化的亲电子试剂（甲基草酸乙酯或乙醛酸乙酯）和普通二烯选择性地（60-100）导致杂羰基-Diels-Alder 反应与烯反应产物。Bi(OTf) 3 表现出很强的催化活性并且在温和的条件下反应。En présence de triflate de bismuth(III) le mésoxalate et le glyoxylate d'éthyle réagissent avec des diènes usuels pour donner un mélange de carbonyl-Diels-Alder et du produit de la ène réaction。Bi(OTf) 3 présente une forte activité catalytique et réagit dans des conditions douces。
• The carbonyl-Diels-Alder reaction catalyzed by bismuth (III) chloride
  作者：Hélène Robert、Bernard Garrigues、Jacques Dubac

  DOI：10.1016/s0040-4039(97)10791-2

  日期：1998.3

  In presence of bismuth (III) chloride, a carbonylated electrophile (ethyl mesoxalate or glyoxylate) and usual diene led selectively (65 to 100%) the hetero carbonyl-Diels-Alder reaction with the ene reaction product. BiCl3 exhibits strong catalytic activity and, compared with previous literature, reacts under mild conditions.

  在氯化铋（III）的存在下，羰基化的亲电试剂（中草酸乙酯或乙醛酸乙酯）和通常的二烯选择性地（65％至100％）导致杂羰基-Diels-Alder反应与烯反应产物。BiCl 3表现出很强的催化活性，并且与以前的文献相比，在温和的条件下反应。
• Glyoxylate-Ene Reaction Catalyzed by Ln(OTf)3
  作者：Changtao Qian、Taisheng Huang

  DOI：10.1016/s0040-4039(97)01536-0

  日期：1997.9

  Yb(OTf)(3), can catalyze the glyoxylate-ene reaction effectively as a water-stable and reusable catalyst. Moreover, the selectivity of DA product or ene product can be adjusted by solvents in the reaction of glyoxylates with a diene (isoprene). In the presence of chiral ytterbium complexes generated in situ from Yb(OTf)(3) and optical 6,6'-disubstituted binaphthols, methyl glyoxylate smoothly reacts with alpha-methyl styrene to afford alpha-hydroxyl esters in modest optical yields. (C) 1997 Elsevier Science Ltd.
• A highly chemo- and enantio-selective hetero-Diels–Alder reaction catalysed by chiral aluminium complexes
  作者：Anette Graven、Mogens Johannsen、Karl Anker Jørgensen

  DOI：10.1039/cc9960002373

  日期：——

  A new, highly chemo- and enantio-selective catalytic hetero Diels-Alder reaction of conjugated dienes containing allylic C-H bonds with carbonyl compounds has been developed; with the use of (S)-(-)-BINOL-AlMe (BINOL = 1,1'-bi-2-naphthol) as a catalyst, simple conjugated dienes react with glyoxylate esters, giving the (R)-enantiomer of the hetero-Diels-Alder adduct as the major product with up to 97% ee.
• Asymmetric hetero Diels-Alder reactions and ene reactions catalyzed by chiral copper(II) complexes
  作者：Mogens Johannsen、Karl Anker Joergensen

  DOI：10.1021/jo00123a007

  日期：1995.9

  A new copper(II) bisoxazoline-catalyzed reaction of glyoxylate esters with dienes leading to the hetero Diet-Alder product and the ene product in high yield and with a high enantiomeric excess (ee) has been developed. The hetero Diels-Alder product:ene product ratio is in the range 1:0.6 to 1:1.8 and is dependent on both the chiral ligand attached to the metal, the glyoxylate ester, and the reaction temperature. The scope of the copper(II) bisoxazoline-catalyzed reaction of glyoxylate esters with dienes is demonstrated by the reaction of a variety of different dienes with ethyl and isopropyl glyoxylate, and it is shown that a simple substrate such as 1,3-butadiene reacts to give the hetero Diels-Alder product in 55% yield with an ee of 87%. Furthermore, the synthetic application of the reaction is demonstrated by the synthesis of a highly interesting synthon for sesquiterpene lactones in high yield and diastereoselectivity, and with a very high ee from 1,3-cyclohexadiene and ethyl glyoxylate using a copper(II) bisoxazoline as the catalyst. A mechanism for the hetero Diels-Alder reaction, which accounts for the enantioselectivity in the reactions, is proposed.