1-Cyclododecyl-2,2,2-trifluoroethanone | 1085493-37-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-Cyclododecyl-2,2,2-trifluoroethanone
• CAS: 1085493-37-3
• 化学式: C₁₄H₂₃F₃O
• 分子量: 264.331
• InChiKey: YFQCSKATZOQEJU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  三氟乙酸乙酯 、 环十二烷羧酸 在 lithium diisopropyl amide 、 盐酸 作用下， 以 四氢呋喃 、 环己烷 、 水 为溶剂， 反应 0.25h， 以65%的产率得到1-Cyclododecyl-2,2,2-trifluoroethanone
  参考文献：
  名称：

  Trifluoromethyl Ketones from Enolizable Carboxylic Acids via Enediolate Trifluoroacetylation/Decarboxylation

  摘要：

  Primary and secondary (enolizable) carboxylic acids were converted in a single step to trifluoromethyl ketones. Treatment of the acid with 2.2 equiv of LDA generated an enediolate that was trifluoroacetylated with EtO2CCF3. Quenching the reaction mixture with aqueous HCI resulted in rapid decarboxylation and provided the trifluoromethyl ketone product in good yield. The process may be performed at -20 degrees C with a slight reduction in yield. The reaction was extended to the preparation of pentafluoroethyl and chlorodifluoromethyl ketones.

  DOI：

  10.1021/jo801737c

文献信息

• Access to Trifluoromethylketones from Alkyl Bromides and Trifluoroacetic Anhydride by Photocatalysis
  作者：Hai‐Wu Du、Yi‐Dan Du、Xian‐Wang Zeng、Wei Shu

  DOI：10.1002/anie.202308732

  日期：2023.9.18

  Catalytic methods for direct access to aliphatic trifluoromethyl ketones from feedstocks remain underdeveloped, partially owing to the high reactivity and instability of the trifluoroacetyl radical. Reported herein is the photocatalytic synthesis of trifluoromethyl ketones from alkyl bromides and trifluoroacetic anhydride. The reaction features visible-light catalysis and halogen-atom transfer (XAT)

  从原料中直接获取脂肪族三氟甲基酮的催化方法仍然不发达，部分原因是三氟乙酰基的高反应活性和不稳定性。本文报道了从烷基溴和三氟乙酸酐光催化合成三氟甲基酮。该反应的特点是可见光催化和卤素原子转移（XAT），然后使烷基自由基与稳定的三氟乙酰基自由基发生自由基-自由基交叉偶联。
• CN116396209
  申请人：——

  公开号：——

  公开（公告）日：——
• Trifluoromethyl Ketones from Enolizable Carboxylic Acids via Enediolate Trifluoroacetylation/Decarboxylation
  作者：Jonathan T. Reeves、Jinhua J. Song、Zhulin Tan、Heewon Lee、Nathan K. Yee、Chris H. Senanayake

  DOI：10.1021/jo801737c

  日期：2008.12.5

  Primary and secondary (enolizable) carboxylic acids were converted in a single step to trifluoromethyl ketones. Treatment of the acid with 2.2 equiv of LDA generated an enediolate that was trifluoroacetylated with EtO2CCF3. Quenching the reaction mixture with aqueous HCI resulted in rapid decarboxylation and provided the trifluoromethyl ketone product in good yield. The process may be performed at -20 degrees C with a slight reduction in yield. The reaction was extended to the preparation of pentafluoroethyl and chlorodifluoromethyl ketones.