3-氟丁酸乙酯 | 55816-70-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 3-氟丁酸乙酯
• 英文名称: ethyl 3-fluorobutanoate
• CAS: 55816-70-1
• 化学式: C₆H₁₁FO₂
• 分子量: 134.151
• InChiKey: KZZPJIREOPELMH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  9
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  ethyl 2-aminobutyrate 在 吡啶 、 氢氟酸 作用下， 生成 3-氟丁酸乙酯
  参考文献：
  名称：

  Conformational studies on 2-fluoro-1,2-disubstituted ethanes by NMR spectroscopy. Influence of electronegativity on vicinal proton-proton and fluorine-proton coupling constants

  摘要：

  AbstractThe analysis of the ABKX spectra of thirteen compounds of the series RC(H‐K)(F‐X)C(H‐A)(H‐B)X gave the four vicinal proton‐proton and fluorine‐proton coupling constants. These coupling constants of conformationally mobile structures were used (i) to calculate the populations of the rotational states of the CHFCH2 bond, (ii) to calculate the vicinal trans proton‐proton J(HH)t and gauche and trans fluorine‐proton coupling constants J(FH)g and J(FH)t and (iii) to give the unambiguous assignment of protons H‐A and H‐B. The dependence of the gauche and trans coupling constants with substituent electronegativity is explored. The results extend known correlations towards smaller electronegativity values. More quantitatively, the results and those in the literature, excluding those where deformations of torsional or bond angles occur, give a good fit of the data: a linear fit for J(HH)t = 15.0‐0.77 Σ(ΔE), an exponential fit for J(FH)g = 15.35 exp [‐0.266 Σ (ΔE)] and a linear fit for J(FH)t = 65.75 ‐ 7.52 Σ (ΔE), where Σ (ΔE) is the sum of the electronegativity difference between hydrogen and the six atoms or groups on the CHCF fragment.

  DOI：

  10.1002/omr.1270210605

文献信息

• Stereospecific Electrophilic Fluorination of Alkylcarbastannatrane Reagents
  作者：Xinghua Ma、Mohamed Diane、Glenn Ralph、Christine Chen、Mark R. Biscoe

  DOI：10.1002/anie.201704672

  日期：2017.10.2

  Speed matters: Site-specific fluorination reactions of isolable primary and secondary alkylcarbastannatrane nucleophiles occur fast, without the need for transition metal catalysis, or in situ activation of the nucleophile. The reaction conditions can also be extended to stereospecific chlorination, bromination, and iodination reactions.

  速度很重要：可分离的伯烷基氨基甲酸酯和仲烷基亲核试剂亲核的特定位置的氟化反应快速发生，而无需过渡金属催化或亲核分子的原位活化。反应条件还可以扩展到立体定向氯化，溴化和碘化反应。
• Action du phenyltetrafluorophosphorane sur les α ou β hydroxy-esters, -cetones, -Nitriles, -ethers, et les nitroalcools. Acces a quelques derives fonctionnels α ou β fluores
  作者：D.J. Costa、N.E. Boutin、J.G. Riess

  DOI：10.1016/s0040-4020(01)90666-0

  日期：1974.1

  The reaction of phenyltetrafluorophosphorane with secondary or tertiary α- or β -hydroxy esters, ketones, nitriles, ethers and nitro derivatives has been investigated. The formation of the alkoxyfluorophosphorane 3 has been established in several cases. Good yields of isolated fluoro compounds were obtained with MeCHFCOOEt, MeCHFCH2COOEt and Me2CFCH2NO2. These compounds eliminate HF readily.

  已经研究了苯基四氟磷烷与仲或叔α-或β-羟基酯，酮，腈，醚和硝基衍生物的反应。在几种情况下已经确定了烷氧基氟磷烷3的形成。用MeCHFCOOEt，MeCHFCH 2 COOEt和Me 2 CFCH 2 NO 2获得了良好的分离出的含氟化合物。这些化合物容易消除HF。
• Effet de la concentration en acide fluorhydrique dans la pyridine sur la regio-selective de la fluoration par deamination d′α-amino-esters : syntheses de composes cargoxyles-β-fluores.
  作者：Sylvain Hamman、Claude G. Beguin

  DOI：10.1016/s0040-4039(00)81326-x

  日期：1983.1
• HAMMAN, S.;BEGUIN, C. G., TETRAHEDRON LETT., 1983, 24, N 1, 57-60
  作者：HAMMAN, S.、BEGUIN, C. G.

  DOI：——

  日期：——