5-(4-氟苯基)戊-5-烯酸 | 1258204-06-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 5-(4-氟苯基)戊-5-烯酸
• 英文名称: 5-(4-fluorophenyl)hex-5-enoic acid
• CAS: 1258204-06-6
• 化学式: C₁₂H₁₃FO₂
• 分子量: 208.232
• InChiKey: UMEKJVFMWHTIFN-UHFFFAOYSA-N

物化性质

• 熔点：
  64 °C
• 沸点：
  354.6±30.0 °C(Predicted)
• 密度：
  1.134±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-(4-氟苯基)戊-5-烯酸 在 4-fluoro-N-iodophthalimide 、 1-(3,5-bis(trifluoromethyl)phenyl)-3-((1R,2R)-2-(dipentylamino)cyclohexyl)urea 、 碘 作用下， 以 甲苯 为溶剂， 反应 120.0h， 以91%的产率得到(S)-6-(4-fluorophenyl)-6-(iodomethyl)tetrahydro-2H-pyran-2-one
  参考文献：
  名称：

  叔氨基脲催化的对映选择性碘内酯化

  摘要：

  结合阴离子：使用叔氨基脲催化剂实现了 5-己烯酸的高度对映选择性碘内酯化（参见方案）。在该过程中使用催化碘对于提高化学计量 I +源的反应性和对映选择性至关重要。该机制被认为涉及通过氢键供体催化剂结合亚胺酸碘鎓中间体。

  DOI：

  10.1002/anie.201003681
• 作为产物：
  描述：

  4-(4-氟苯甲酰基)丁酸甲酯 在 lithium hydroxide monohydrate 、 水 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 生成 5-(4-氟苯基)戊-5-烯酸
  参考文献：
  名称：

  Asymmetric Iodolactonization Utilizing Chiral Squaramides

  摘要：

  Asymmetric iodolactonization of gamma- and delta-unsaturated carboxylic acids has been explored in the presence of six different chiral organocatalysts 5-8. The catalyst 6b was found to facilitate the cyclization of 5-arylhex-5-enoic acids 1 to the corresponding iodolactones 2 with up to 96% ee. By this protocol, unsaturated carboxylic acids are converted enantioselectively to synthetically useful delta-lactones in high yields using commercially available NIS. Apparently, both hydrogen bonding and aryl/aryl interactions are important for efficient stereodifferentiation.

  DOI：

  10.1021/ol302798g

文献信息

• Enantioselective Organocatalyzed Bromolactonizations: Applications in Natural Product Synthesis
  作者：Marius Aursnes、Jørn E. Tungen、Trond V. Hansen

  DOI：10.1021/acs.joc.6b01375

  日期：2016.9.16

  The best catalyst enabled the cyclization of several 5-arylhex-5-enoic acids into the corresponding bromolactones with up to 96% ee and in high to excellent chemical yields. The reported catalysts are prepared in a straightforward manner in two steps from dimethyl squarate. The utility of the developed protocol was demonstrated in highly enantioselective syntheses of the sesquiterpenoids (−)-gossoronol

  在10种手性方酰胺氢键键合有机催化剂的存在下，对δ-不饱和羧酸的不对称溴化反应进行了研究。最好的催化剂可以使几种5-芳基己基-5-烯酸环化成相应的溴内酯，其ee最高可达96％，化学产率高至优异。所报道的催化剂是由直方的，由二甲基二甲酸酯分两步制备的。倍半萜类（-）-棉酚和（-）-boivinianin B的高度对映体选择性合成证明了开发方案的实用性。两种天然产物均以≥99％的对映体过量获得。
• Asymmetric Bromolactonization Catalyzed by a C3-Symmetric Chiral Trisimidazoline
  作者：Kenichi Murai、Tomoyo Matsushita、Akira Nakamura、Shunsuke Fukushima、Masato Shimura、Hiromichi Fujioka

  DOI：10.1002/anie.201005409

  日期：2010.11.22

  A productive alliance: In an enantioselective organocatalytic bromolactonization of 5‐substituted hex‐5‐enoic acids (see scheme), it appears that the formation of an ion pair through interaction of the trisimidazoline catalyst 1 with the substrate both creates a chiral environment and promotes the cyclization by activating the carboxylic acid. DBDMH=1,3‐dibromo‐5,5‐dimethylhydantoin.

  一个有效的联盟：在5个取代的6-5个烯酸的对映选择性有机催化溴化内酰胺中（参见方案），似乎通过三咪唑啉催化剂1与底物的相互作用形成离子对，既创造了手性环境，又促进了通过活化羧酸环化。DBDMH = 1,3-二溴-5,5-二甲基乙内酰脲。
• Accessing novel fluorinated heterocycles with the hypervalent fluoroiodane reagent by solution and mechanochemical synthesis
  作者：William Riley、Andrew C. Jones、Kuldip Singh、Duncan L. Browne、Alison M. Stuart

  DOI：10.1039/d1cc02587b

  日期：——

  A new and efficient strategy for the rapid formation of novel fluorinated tetrahydropyridazines and dihydrooxazines has been developed by fluorocyclisation of β,γ-unsaturated hydrazones and oximes with the fluoroiodane reagent. Mechanochemical synthesis delivered fluorinated tetrahydropyridazines in similar excellent yields to conventional solution synthesis, whereas fluorinated dihydrooxazines were

  通过用氟碘试剂对 β,γ-不饱和腙和肟进行氟环化，开发了一种快速形成新型氟化四氢哒嗪和二氢恶嗪的有效策略。机械化学合成以与常规溶液合成相似的优异产率提供氟化四氢哒嗪，而通过球磨制备氟化二氢恶嗪的产率要好得多。
• Achiral Counterion Control of Enantioselectivity in a Brønsted Acid-Catalyzed Iodolactonization
  作者：Mark C. Dobish、Jeffrey N. Johnston

  DOI：10.1021/ja301858r

  日期：2012.4.11

  Highly enantioselective halolactonizations have been developed that employ a chiral proton catalyst-N-iodosuccinimide (NIS) reagent system in which the Brønsted acid is used at catalyst loadings as low as 1 mol %. An approach that modulates the achiral counterion (equimolar to the neutral chiral ligand-proton complex present at low catalyst loadings) to optimize the enantioselection is documented for

  已经开发出高度对映选择性卤内酯化反应，它采用手性质子催化剂-N-碘代琥珀酰亚胺 (NIS) 试剂系统，其中布朗斯台德酸以低至 1 mol% 的催化剂负载量使用。在该转化中首次记录了一种调节非手性抗衡离子（与低催化剂负载下存在的中性手性配体-质子复合物等摩尔）以优化对映体选择的方法。通过这种方式，使用市售 NIS 将不饱和羧酸以高产率（高达 98% ee）转化为 γ-内酯。
• Enantioselective Bromolactonization Using an<i>S</i>-Alkyl Thiocarbamate Catalyst
  作者：Xiaojian Jiang、Chong Kiat Tan、Ling Zhou、Ying-Yeung Yeung

  DOI：10.1002/anie.201202079

  日期：2012.7.27

  The apple never falls far from the tree: S‐alkyl thiocarbamate 1 (see scheme, NBP=N‐bromophthalimide) was prepared in high yield through a synthetic sequence involving a Newman–Kwart rearrangement of the corresponding O‐alkyl thiocarbamates. Compound 1 was used to catalyze bromolactonization, thus providing enantioenriched δ‐lactones in excellent yield and enantioselectivity.

  苹果永远不会离树太远：通过涉及相应的O-烷基硫代氨基甲酸酯的Newman-Kwart重排的合成序列，以高收率制备了S-烷基硫代氨基甲酸酯1（参见方案，NBP = N-溴邻苯二甲酰亚胺）。化合物1用于催化溴化内酯化，从而以优异的收率和对映选择性提供了对映体富集的δ-内酯。