3,3-二氟哌啶-2-酮 | 1206540-41-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 中文名称: 3,3-二氟哌啶-2-酮
• 英文名称: 3,3-difluoropiperidin-2-one
• 英文别名: 3,3-difluoro-2-piperidinone
• CAS: 1206540-41-1
• 化学式: C₅H₇F₂NO
• mdl: MFCD16250667
• 分子量: 135.113
• InChiKey: CZFCNNRJNWVTHR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3,3-二氟哌啶-2-酮 、 3,6-difluoro-9-(oxiran-2-ylmethyl)-9H-carbazole 反应 16.0h， 生成 1-(3-(3,6-difluoro-9H-carbazol-9-yl)-2-hydroxypropyl)-3,3-difluoropiperidin-2-one
  参考文献：
  名称：

  含咔唑的酰胺和脲：发现隐花色素调节剂作为降糖药

  摘要：

  合成了一系列新型的含咔唑的酰胺和脲。这些化合物的结构-活性关系研究导致了强效隐色调节剂的鉴定。基于所需的药代动力学/药效学参数和在db / db小鼠中的功效研究结果，选择化合物50进行进一步分析。

  DOI：

  10.1016/j.bmcl.2017.12.051
• 作为产物：
  描述：

  ethyl 4-cyano-2,2-difluorobutanoate 在 platinum(IV) oxide 、 氢气 作用下， 以 乙醇 为溶剂， 20.0 ℃ 、350.0 kPa 条件下， 反应 72.0h， 生成 3,3-二氟哌啶-2-酮
  参考文献：
  名称：

  Synthesis of 4-Substituted 3,3-Difluoropiperidines

  摘要：

  Synthetic strategies toward 4-substituted 3,3-difluoropiperidines were evaluated. 4-Alkoxymethyl- and 4-aryloxymethyl-3,3-difluoropiperidines were synthesized via 1,4-addition of ethyl bromodifluoroacetate to 3-substituted acrylonitriles in the presence of copper powder, followed by borane reduction of the cyano substituent, lactamization, and reduction of the lactam. This method was applied to establish the synthesis of N-protected 3,3-difluoroisonipecotic acid, a fluorinated gamma-amino, acid. 4-Benzyloxy-3,3-difluoropiperidine was prepared using an analogous methodology and was converted to N-protected 3,3-difluoro-4,4-dihydroxypiperidine, a compound with high potential as a building block in medicinal chemistry.

  DOI：

  10.1021/jo902164z

文献信息

• Evaluating the Viability of Successive Ring‐Expansions Based on Amino Acid and Hydroxyacid Side‐Chain Insertion
  作者：Aggie Lawer、Ryan G. Epton、Thomas C. Stephens、Kleopas Y. Palate、Mahendar Lodi、Emilie Marotte、Katie J. Lamb、Jade K. Sangha、Jason M. Lynam、William P. Unsworth

  DOI：10.1002/chem.202002164

  日期：2020.10

  size. This manuscript, which builds upon our previous work on Successive Ring Expansion (SuRE) methods, details efforts to better define the scope and limitations of these reactions on lactam and β‐ketoester ring systems with respect to ring size and additional functionality. The synthetic results provide clear guidelines as to which substrate classes are more likely to be successful and are supported

  基于氨基/羟基酸侧链插入的扩环反应的结果很大程度上取决于环的大小。这份手稿建立在我们之前关于连续环扩展 (SuRE) 方法的工作的基础上，详细介绍了为更好地定义内酰胺和 β-酮酯环系统上这些反应在环大小和附加功能方面的范围和局限性所做的努力。合成结果为哪些底物类别更有可能成功提供了明确的指导，并得到了使用密度泛函理论 (DFT) 方法的计算结果的支持。计算扩环过程中可逆形成的三种异构体的相对吉布斯自由能，使得在大多数情况下能够正确预测新合成反应的可行性。新的合成和计算结果预计将支持新的基于内酰胺和β-酮酯的扩环反应的设计。
• Synthesis of 4-Substituted 3,3-Difluoropiperidines
  作者：Riccardo Surmont、Guido Verniest、Jan Willem Thuring、Gregor Macdonald、Frederik Deroose、Norbert De Kimpe

  DOI：10.1021/jo902164z

  日期：2010.2.5

  Synthetic strategies toward 4-substituted 3,3-difluoropiperidines were evaluated. 4-Alkoxymethyl- and 4-aryloxymethyl-3,3-difluoropiperidines were synthesized via 1,4-addition of ethyl bromodifluoroacetate to 3-substituted acrylonitriles in the presence of copper powder, followed by borane reduction of the cyano substituent, lactamization, and reduction of the lactam. This method was applied to establish the synthesis of N-protected 3,3-difluoroisonipecotic acid, a fluorinated gamma-amino, acid. 4-Benzyloxy-3,3-difluoropiperidine was prepared using an analogous methodology and was converted to N-protected 3,3-difluoro-4,4-dihydroxypiperidine, a compound with high potential as a building block in medicinal chemistry.
• Carbazole-containing amides and ureas: Discovery of cryptochrome modulators as antihyperglycemic agents
  作者：Paul S. Humphries、Ross Bersot、John Kincaid、Eric Mabery、Kerryn McCluskie、Timothy Park、Travis Renner、Erin Riegler、Tod Steinfeld、Eric D. Turtle、Zhi-Liang Wei、Erik Willis

  DOI：10.1016/j.bmcl.2017.12.051

  日期：2018.2

  A series of novel carbazole-containing amides and ureas were synthesized. A structure–activity relationship study of these compounds led to the identification of potent cryptochrome modulators. Based on the desired pharmacokinetic/pharmacodynamic parameters and the results of efficacy studies in db/db mice, compound 50 was selected for further profiling.

  合成了一系列新型的含咔唑的酰胺和脲。这些化合物的结构-活性关系研究导致了强效隐色调节剂的鉴定。基于所需的药代动力学/药效学参数和在db / db小鼠中的功效研究结果，选择化合物50进行进一步分析。