methyl 4-hydroxyhex-5-enoate | 66855-22-9

• 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: methyl 4-hydroxyhex-5-enoate
• 英文别名: Methyl-4-Hydroxy-5-hexenoate；Methyl 4-hydroxyhex-5-enoate
• CAS: 66855-22-9
• 化学式: C₇H₁₂O₃
• 分子量: 144.17
• InChiKey: NQAAMXMAYNICPG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  10
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 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：

  methyl 4-hydroxyhex-5-enoate 以 二氯甲烷 为溶剂， 生成 5-乙炔二氢-2(3H-)-呋喃酮
  参考文献：
  名称：

  通过光化学控制引导发散反应：双色选择性接触乙酰丙酸酯和丁烯醇内酯†

  摘要：

  当使用菲作为调节剂时，烯丙基和丙烯酸底物可以通过顺序的双色光化学方法以高选择性被有效地转化为乙酰丙酸酯或丁烯酸酯的衍生物。因此，UV-A光诱导的交叉复分解（CM）耦合了丙烯酸和烯丙基的对应物，随后的UV-C辐照引发了E – Z碳-碳双键的异构化，然后是两个相互竞争的过程之一；即，通过酯交换或1，5-H转移和互变异构进行环化。量子化学计算表明，中间体对于环化而言发生了强烈的蓝移，而对于1,5-H转移反应则发生了红移。因此，通过采用吸收UV-C的菲来延迟双键迁移，会导致选择性的新型发散性全光化学途径，用于合成无处不在的天然产物的基本结构图案。

  DOI：

  10.1039/c7sc05094a
• 作为产物：
  描述：

  methyl 6-(3-nitrophenoxy)hex-4-enoate 在 甲醇 、 (2S,3S)-(6-(4-tert-butyl-2,6-dimethylphenyl)-2,3-diphenyl-2,3,5,6-tetrahydroimidazo[1,2-c]quinazolin-5-yl)copper(I) chloride 、 双氧水 、 sodium hydroxide 、 sodium t-butanolate 作用下， 以 乙醚 、 水 、 乙酸乙酯 为溶剂， 反应 14.0h， 生成 methyl 4-hydroxyhex-5-enoate
  参考文献：
  名称：

  Stereoconvergent Synthesis of Chiral Allylboronates from an E/Z Mixture of Allylic Aryl Ethers Using a 6-NHC−Cu(I) Catalyst

  摘要：

  We present a 6-NHC-Cu(I) complex that provides alpha-substituted allylboronates using allylic aryl ether substrates. The method was discovered by comparison of the chemoselectivities exhibited by complexes 1a, 1b, 2, and 3. We observed that 1a preferentially reacts with electron-rich alkenes over electron-deficient alkenes. Development of an asymmetric method revealed that 1b reacts with both the E and Z isomers to provide the same absolute configuration without showing E-Z isomerization. This stereoconvergent reaction occurs with high yields (av 86%), high S(N)2` selectivity (> 99:1), and high ee (av 94%) and exhibits wide functional-group tolerance using pure E or Z isomer or E/Z alkene mixtures. The stereoconvergent feature enables the use of many different olefination strategies for substrate production, including cross-metathesis. Chiral allylboronates could be purified by silica gel chromatography and stored in the freezer without decomposition.

  DOI：

  10.1021/ja1112518

文献信息

• Enantioselective synthesis of 1-deoxy-d-gulonojirimycin from a phenylglycinol-derived lactam
  作者：Mercedes Amat、Marta Huguet、Núria Llor、Oriol Bassas、Antonia M Gómez、Joan Bosch、Josefa Badia、Laura Baldoma、Juan Aguilar

  DOI：10.1016/j.tetlet.2004.05.089

  日期：2004.7

  Cyclocondensation of (R)-phenylglycinol with appropriately γ-substituted δ-oxo acid derivatives provides bicyclic lactams from which the enantioselective synthesis of 1-deoxy-d-gulonojirimycin has been reported.

  （R）-苯基甘氨醇与适当的γ-取代的δ-氧代酸衍生物的环缩合提供了双环内酰胺，据报道，该双环内酰胺的对映选择性是1-脱氧-d-古隆吉里霉素的合成。
• Ubiquinone and related compounds. XXXI. Synthesis of urinary metabolites of ubiquinone, phylloquinone, .ALPHA.-tocopherol and their related compounds.
  作者：MASAZUMI WATANABE、KAYOKO OKAMOTO、ISUKE IMADA、HIROSHI MORIMOTO

  DOI：10.1248/cpb.26.774

  日期：——

  Metabolites (XVIIa, b, c) of ubiquinone, phylloquinone and α-tocopherol, and their 2', 3'-dihydro (XXa, b, c), dicarboxy (XVIa, b, XXIIIa, b, c, XXIVa, b and XXVa, b) and 3'-demethyl (XXIa, b) derivatives were synthesized. During the synthetic studies of these compounds, we found that cis-4-acetoxy-1-bromo-2-methyl-2-butene (cis-III) was more reactive to nucleophiles than the corresponding trans isomer. γ-Vinyl-γ-butyrolactone (XII), which was a useful starting material for the synthesis of XXIa, b, was synthesized in one step from 1, 3-butadiene. The 3'-methyl group of XVIIa, b was not essential for the membrane-stabilizing activity in the rat-liver lysosome. Introduction of a carboxyl but not a carboxyl ester group into XVIIa, b resulted in a loss of the stabilizing activity.

  合成了泛醌、叶醌和α-生育酚的代谢物（XVIIa, b, c）及其2', 3'-二氢（XXa, b, c）、二羧基（XVIa, b, XXIIIa, b, c, XXIVa, b 和 XXVa, b）和3'-去甲基（XXIa, b）衍生物。在这些化合物的合成研究过程中，我们发现顺-4-乙氧基-1-溴-2-甲基-2-丁烯（cis-III）对核苷酸反应性比相应的反异构体更强。γ-乙烯基-γ-丁内酯（XII）作为合成XXIa, b的有用起始材料，可以一步从1, 3-丁二烯合成。XVIIa, b的3'-甲基基团对大鼠肝脏溶酶体的膜稳定活性并不是必需的。将羧基引入XVIIa, b，而不是羧酸酯基团，会导致稳定活性的丧失。
• Guiding a divergent reaction by photochemical control: bichromatic selective access to levulinates and butenolides
  作者：Revannath L. Sutar、Saumik Sen、Or Eivgi、Gal Segalovich、Igor Schapiro、Ofer Reany、N. Gabriel Lemcoff

  DOI：10.1039/c7sc05094a

  日期：——

  irradiation initiates E–Z isomerization of the carbon–carbon double bond, followed by one of two competing processes; namely, cyclization by transesterification or a 1,5-H shift and tautomerization. Quantum chemical calculations demonstrate that intermediates are strongly blue-shifted for the cyclization while red-shifted for the 1,5-H shift reaction. Hence, delaying the double bond migration by employing

  当使用菲作为调节剂时，烯丙基和丙烯酸底物可以通过顺序的双色光化学方法以高选择性被有效地转化为乙酰丙酸酯或丁烯酸酯的衍生物。因此，UV-A光诱导的交叉复分解（CM）耦合了丙烯酸和烯丙基的对应物，随后的UV-C辐照引发了E – Z碳-碳双键的异构化，然后是两个相互竞争的过程之一；即，通过酯交换或1，5-H转移和互变异构进行环化。量子化学计算表明，中间体对于环化而言发生了强烈的蓝移，而对于1,5-H转移反应则发生了红移。因此，通过采用吸收UV-C的菲来延迟双键迁移，会导致选择性的新型发散性全光化学途径，用于合成无处不在的天然产物的基本结构图案。
• Stereoconvergent Synthesis of Chiral Allylboronates from an <i>E</i>/<i>Z</i> Mixture of Allylic Aryl Ethers Using a 6-NHC−Cu(I) Catalyst
  作者：Jin Kyoon Park、Hershel H. Lackey、Brian A. Ondrusek、D. Tyler McQuade

  DOI：10.1021/ja1112518

  日期：2011.3.2

  We present a 6-NHC-Cu(I) complex that provides alpha-substituted allylboronates using allylic aryl ether substrates. The method was discovered by comparison of the chemoselectivities exhibited by complexes 1a, 1b, 2, and 3. We observed that 1a preferentially reacts with electron-rich alkenes over electron-deficient alkenes. Development of an asymmetric method revealed that 1b reacts with both the E and Z isomers to provide the same absolute configuration without showing E-Z isomerization. This stereoconvergent reaction occurs with high yields (av 86%), high S(N)2` selectivity (> 99:1), and high ee (av 94%) and exhibits wide functional-group tolerance using pure E or Z isomer or E/Z alkene mixtures. The stereoconvergent feature enables the use of many different olefination strategies for substrate production, including cross-metathesis. Chiral allylboronates could be purified by silica gel chromatography and stored in the freezer without decomposition.