ethyl 2-cyclohexylidene-2-fluoroacetate | 55305-86-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: ethyl 2-cyclohexylidene-2-fluoroacetate
• 英文别名: α-fluorocyclohexylideneacetate；ethyl cyclohexylidene(fluoro)acetate；ethyl cyclohexylidenefluoroacetate
• CAS: 55305-86-7
• 化学式: C₁₀H₁₅FO₂
• 分子量: 186.226
• InChiKey: VDXJZTLYXSLPTP-UHFFFAOYSA-N

物化性质

• 沸点：
  241.4±15.0 °C(Predicted)
• 密度：
  1.071±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2916209090

反应信息

• 作为反应物：
  描述：

  ethyl 2-cyclohexylidene-2-fluoroacetate 在 氢氧化钾 、 草酰氯 、 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、 N,N-二异丙基乙胺 、 N,N-二甲基甲酰胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 40.17h， 生成 2-Cyclohexylidene-2-fluoro-N-phenyl-acetamide
  参考文献：
  名称：

  Fluoro-Olefins as Peptidomimetic Inhibitors of Dipeptidyl Peptidases

  摘要：

  The feasibility of the fluoro-olefin function as a peptidomimetic group in inhibitors for dipeptidyl peptidase IV and II (DPP IV and DPP II) is investigated by evaluation of N-substituted Gly-Psi[CF=C]pyrrolidines, Gly-Psi[CF=C]piperldines, and Gly-Psi[CF=C](2-cyano)pyrrolidines. Of this later class, the (Z)- and (E)-fluoro-olefin analogues were prepared and chemical stability in comparison with the parent amide was checked. Most of these compounds exhibited a strong binding preference toward DPP II with IC50 values in the low micromolar range, while only low DPP IV inhibitory potential is seen.

  DOI：

  10.1021/jm0495982
• 作为产物：
  描述：

  1-(trifluoro vinyl) cyclohexanol 在 吡啶 、 硫酸 作用下， 生成 ethyl 2-cyclohexylidene-2-fluoroacetate
  参考文献：
  名称：

  A New Preparation of Trifluorovinyllithium. Applications to the Syntheses of Trifluorovinylalcohols and of α-Fluoro-α-ethylenic Acids and Derivatives

  摘要：

  DOI：

  10.1055/s-1975-23683

文献信息

• P[N(<i>i-</i>Bu)CH₂CH₂]₃N: Nonionic Lewis Base for Promoting the Room-Temperature Synthesis of α,β-Unsaturated Esters, Fluorides, Ketones, and Nitriles Using Wadsworth−Emmons Phosphonates
  作者：Venkat Reddy Chintareddy、Arkady Ellern、John G. Verkade

  DOI：10.1021/jo1012515

  日期：2010.11.5

  serves as an effective promoter for the room-temperature stereoselective synthesis of α,β-unsaturated esters, fluorides, and nitriles from a wide array of aromatic, aliphatic, heterocyclic, and cyclic aldehydes and ketones, using a range of Wadsworth−Emmons (WE) phosphonates. Among the analogues of 1c [R = Me (1a), i-Pr (1b), Bn (1d)], 1a and 1b performed well, although longer reaction times were involved

  双环三氨基膦P（RNCH 2 CH 2）3 N（R = i -Bu，1c）可作为室温下立体选择性合成α，β-不饱和酯，氟化物和腈的有效促进剂芳香族，脂肪族，杂环和环状醛和酮，使用一系列Wadsworth-Emmons（WE）膦酸酯。在1c [R = Me（1a），i -Pr（1b），Bn（1d）]的类似物中，1a和1b表现良好，尽管涉及的反应时间更长，而1d导致的收率低于1c。氰基，氯，溴，甲氧基，氨基，酯和硝基等官能团的耐受性很好。我们能够分离和表征（通过X射线；见上文）由2b和1c形成的反应性WE中间体。
• The Reaction of α-Diazo-β-hydroxy Esters with Boron Trifluoride Etherate:  Generation and Rearrangement of Destabilized Vinyl Cations. A Detailed Experimental and Theoretical Study
  作者：Roberto Pellicciari、Benedetto Natalini、Bahman M. Sadeghpour、Maura Marinozzi、James P. Snyder、Bobby L. Williamson、Jeffrey T. Kuethe、Albert Padwa

  DOI：10.1021/ja950971s

  日期：1996.1.1

  ketones. Further treatment of these α-diazo-β-hydroxy esters with boron trifluoride etherate in various solvents affords an unusual array of products. Product types and ratios were found to be strongly dependent on ring size and the solvent used. The reaction proceeds by Lewis acid complexation of the alcohol functionality of the diazo hydroxy ester with BF3 etherate followed by neighboring-group participation

  通过用 LDA 处理重氮乙酸乙酯，然后与一系列环酮反应来制备环状 2-重氮-3-羟基羧酸乙酯。在各种溶剂中用三氟化硼醚合物进一步处理这些 α-重氮-β-羟基酯，可得到一系列不寻常的产品。发现产品类型和比例很大程度上取决于环大小和所用溶剂。该反应通过重氮羟基酯的醇官能团与 BF3 醚合物的路易斯酸络合进行，然后重氮部分的相邻基团参与生成亚环烷基重氮盐。氮的损失会产生高反应性、不稳定的线性乙烯基阳离子。通过 1,2-亚甲基位移的扩环导致形成更稳定的弯曲环烯基乙烯基阳离子。随后的 1, 2-亚甲基位移导致环收缩，最终形成稳定的烯丙基阳离子。该阳离子要么被溶剂捕获，要么与相邻的离子发生环化...
• <i>Z</i>-Selective or Stereospecific Alkenylation Reaction: A Novel Synthetic Method for α-Fluoro-α,β-unsaturated Esters
  作者：Mitsuhiro Yoshimatsu、Yoshinori Murase、Akinori Itoh、Genzoh Tanabe、Osamu Muraoka

  DOI：10.1246/cl.2005.998

  日期：2005.7

  The Z-selective formation of α-fluoro-α,β-unsaturated esters was achieved using the deselenenic acid of the syn- and/or anti-3-aryl-2-fluoro-3-hydroxy-2-organoselanylacetates 3 and 4 with trifluoro...

  使用顺-和/或反-3-芳基-2-氟-3-羟基-2-有机硒基乙酸酯3和4的脱硒酸实现α-氟-α,β-不饱和酯的Z-选择性形成三氟...
• Efficient Synthesis of Fluoroalkenes via Diethylzinc-Promoted Wittig Reaction
  作者：Philippe Jubault、Xavier Pannecoucke、Ludivine Zoute、Guillaume Dutheuil、Jean-Charles Quirion

  DOI：10.1055/s-2006-950208

  日期：2006.10

  The synthesis of α-fluoroacrylates and α-bromo-α-fluoroalkenes was achieved in very good yields using aldehydes and ketones, triphenylphosphine, diethylzinc as promoter, and ethyl dibromofluoroacetate or dibromofluoromethane, respectively. A change in the addition sequence was critical in order to obtain exclusively α-fluoroacrylates in good yields.

  α-氟丙烯酸酯和α-溴-α-氟烯烃的合成得到了非常好的产率，使用了醛和酮、三苯基磷、二乙基锌作为促进剂，以及乙基二溴氟乙酸酯或二溴氟甲烷。改变添加顺序对独占性获得α-氟丙烯酸酯的高产率至关重要。
• Scope and limitations of the Julia–Kocienski reaction with fluorinated sulfonylesters
  作者：Charlène Calata、Jean-Marie Catel、Emmanuel Pfund、Thierry Lequeux

  DOI：10.1016/j.tet.2009.03.041

  日期：2009.5

  The study of the Julia–Kocienski reaction between fluorinated arylsulfone and ketones is described. The corresponding fluoroalkenes were isolated in moderate to good yields from β- and δ-substituted cyclic ketones. From acyclic ketones and α-substituted cyclic ketones a decarbethoxylation reaction of the sulfonylesters occurred. This decarbethoxylation reaction opened a new route for the preparation

  描述了氟化芳基砜与酮之间的Julia-Kocienski反应的研究。从β-和δ-取代的环酮以中等至良好的产率分离出相应的氟代烯烃。由无环酮和α-取代的环酮发生磺酰基酯的脱碳乙氧基化反应。该脱碳乙氧基化反应为制备各种氟代烷基砜作为制备氟代烯烃的潜在基石开辟了一条新途径。