(E)-methyl 7-oxo-hept-5-enoate | 66688-21-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (E)-methyl 7-oxo-hept-5-enoate
• 英文别名: methyl (E)-7-oxohept-5-enoate
• CAS: 66688-21-9
• 化学式: C₈H₁₂O₃
• 分子量: 156.181
• InChiKey: VAABLYJJNBCIAU-HWKANZROSA-N

物化性质

• 沸点：
  243.3±33.0 °C(Predicted)
• 密度：
  1.007±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (E)-methyl 7-oxo-hept-5-enoate 在 吡啶 、 三乙胺 、 乙烯基乙醚 、 间氯过氧苯甲酸 作用下， 以 氯仿 为溶剂， 反应 12.25h， 生成 (+/-)-methyl 8-hydroxy-5,6-octadienoate
  参考文献：
  名称：

  A short synthesis of the antifungal principle of Sapium japonicum

  摘要：

  Methyl 8-hydroxy-5,6-octadienoate (1), the antifungal principle of Sapium japonicum, was prepared via the oxidation and [2,3] sigmatropic rearrangement of a dienyl selenide precursor.

  DOI：

  10.1016/s0040-4039(00)61269-8
• 作为产物：
  描述：

  5-羟基戊酸甲酯 在 草酰氯 、 二甲基亚砜 、 三乙胺 作用下， 生成 (E)-methyl 7-oxo-hept-5-enoate
  参考文献：
  名称：

  Synthesis of docosahexaenoic acid derivatives designed as novel PPARγ agonists and antidiabetic agents

  摘要：

  To discover novel peroxisome proliferator-activated receptor gamma (PPAR gamma) agonists that Could be used as antidiabetic agents, we designed docosahexacnoic acid (DHA) derivatives (2 and 3), which have a hydrophilic substituent at the C(4)-position, based on the crystal structure of the ligand-binding pocket of PPAR gamma. These compounds were synthesized via iodolactolic as a key intermediate. We found that both DHA derivatives (2 and 3) showed PPAR gamma transactivation higher than, or comparable to, that of pioglitazone, which is a TZD derivative used as an antidiabetic agent. DHA derivatives related to these potent Compounds 2 and 3 were also synthesized to study structure-activity relationships. Furthermore, 4-OH DHA 2, which shows strong PPAR gamma transcriptional activity, was separated as an optically pure form. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2005.07.074

文献信息

• Asymmetric simmons-smith reactions using homochiral protecting groups
  作者：Atsunori Mori、Isao Arai、Hisashi Yamamoto、Hisao Nakai、Yoshinobu Arai

  DOI：10.1016/s0040-4020(01)88107-2

  日期：1986.1

  Asymmetric Simmons-Smith reactions of α,β-unsaturated acetals derived from chiral dialkyl tartrate or (2R,4R)-2,4-pentanediol are described. Treatment of the acetal with diethylzinc and methylene iodide gives a cyclopropane with high diastereoselectivity. The acetal group is readily transformed to the aldehyde or the ester group. In addition, the method is successfully applied to the enantioselective

  描述了衍生自手性酒石酸二烷基酯或（2R，4R）-2,4-戊二醇的α，β-不饱和缩醛的不对称Simmons-Smith反应。用二乙基锌和二碘甲烷处理缩醛得到具有高非对映选择性的环丙烷。缩醛基很容易转化为醛或酯基。此外，该方法已成功应用于对白三烯生物合成的稳定和选择性抑制剂5,6-甲醇-真三烯A 4的对映选择性合成。
• Homochiral ketals in organic synthesis. Diastereoselective cyclopropanation of α,β-unsaturated ketals derived from 1,4-D1-O-benzyl-l-threitol
  作者：Eugene A. Mash、Keith A. Nelson

  DOI：10.1016/s0040-4020(01)90002-x

  日期：——

  2-Cycloalken-1-one 1,4-di --benzyl -L-threitol ketals undergo efficient and diastereoselective cyclopropanation when treated with an excess of the Simmons-Smith reagent. For example, 2-cyclohexen-1-one 1,4-di --benzyl -L-threitol ketal gave in 90-98% yield a 9:1 mixture of diastereomeric cyclopropanes as established by 62.9 MHz 13C NMR spectroscopy and by hydrolysis of the mixture to (1,6)-bicyclo[4

  当用过量的Simmons-Smith试剂处理时，2-Cycloalken-1-one 1,4-二--苄基-L-苏糖醇缩酮会发生高效且非对映选择性的环丙烷化。例如，由62.9 MHz 13 C NMR光谱法和水解确定，2-环己烯-1-酮1，4-二-苄基-L-苏糖醇缩酮的收率为90-98％，为非对映体环丙烷的9：1混合物将混合物制成（1，6 ）-双环[4.1.0]庚烷-2-酮。给出了十六个其他实例，这些实例证明了2-环烯-1-酮缩酮的制备方法的一般性和可预测性，因为不幸的是，它对α，β-不饱和1,4-二-苄基-L-苏糖醇缺乏非对映选择性乙缩醛。
• Discovery of a Highly Potent Anti-inflammatory Epoxyisoprostane-Derived Lactone
  作者：Julian Egger、Peter Bretscher、Stefan Freigang、Manfred Kopf、Erick M. Carreira

  DOI：10.1021/ja509892u

  日期：2014.12.17

  Epoxyisoprostanes EI (1) and EC (2) are effective inhibitors of the secretion of proinflammatory cytokines IL-6 and IL-12. In detailed studies toward the investigation of the molecular mode of action of these structures, a highly potent lactone (3) derived from 1 was identified. The known isoprostanoids 1 and 2 are most likely precursors of 3, the product of facile intramolecular reaction between the

  环氧异前列腺素 EI (1) 和 EC (2) 是促炎细胞因子 IL-6 和 IL-12 分泌的有效抑制剂。在研究这些结构的分子作用模式的详细研究中，鉴定了一种源自 1 的高效内酯 (3)。已知的异前列腺素 1 和 2 很可能是 3 的前体，是环氧化物与 2 中的羧酸之间容易发生的分子内反应的产物。
• Convergent synthesis of leukotriene a methyl ester
  作者：John G. Gleason、D.Boles Bryan、Charles M. Kinzig

  DOI：10.1016/s0040-4039(01)83931-9

  日期：——

  A convergent total synthesis of methyl 5,6-oxido-7,9,11,14-eicosapentaenoate from oct-2-yn-l-ol and metyl 4-formylbutyrate is described.

  描述了由辛-2-炔-1-醇和4-甲酰丁酸甲酯合成的5,6-氧化-7,9,11,14-二十碳五烯酸甲酯的收敛性全合成。
• A stereo- and enantioselective approach to clavulones from tricyclodecadienone using flash vacuum thermolysis
  作者：Jie Zhu、Ji-Ying Yang、Antonius J.H Klunder、Zhi-Yu Liu、Binne Zwanenburg

  DOI：10.1016/0040-4020(95)00237-3

  日期：1995.5

  which are key intermediates in this approach, are obtained from enantiopure endo-tricyclo[5.2.1.02,6]decadienones (+)- and (+)- in 6 and 8 steps, respectively. Crucial steps are the reductive epoxy ring opening in compounds (+)- and to give the corresponding diols (+)- and , and the thermal cycloreversion of tricyclodecenones (+)- and , using the technique of flash vacuum thermolysis (FVT). The synthesis

  描述了克拉维酮及其类似物的立体和对映选择性合成。γ-羟基环戊烯酮（-）-和-是该方法的关键中间体，分别从对映体纯的内-三环[5.2.1.0 2,6 ]癸二烯酮（+）-和（+）-分别以6和8个步骤获得。关键步骤是使用闪蒸真空热解（FVT）技术在化合物（+）-中还原环氧环，从而得到相应的二醇（+）-和，以及三环癸烯酮（+）-和热环还原。对映体（-）-的合成代表克拉维酮的正式全合成。克拉维酮类似物（-）-和（-）- （X = CH 2 OH）的合成是通过与醛缩合，然后除去水并去除保护性THP-基团来完成的。