ethyl 2-methylene-3-[(trifluoromethyl)sulfonyl]propanoate | 210489-88-6

• 分子结构分类: 有机化合物 - 有机硫化合物 - 磺酰类
• 英文名称: ethyl 2-methylene-3-[(trifluoromethyl)sulfonyl]propanoate
• 英文别名: Ethyl 2-(trifluoromethylsulfonylmethyl)prop-2-enoate
• CAS: 210489-88-6
• 化学式: C₇H₉F₃O₄S
• 分子量: 246.207
• InChiKey: KIWVRDUNUMIPHZ-UHFFFAOYSA-N

物化性质

• 沸点：
  284.9±40.0 °C(Predicted)
• 密度：
  1.368±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  15
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  68.8
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  环己烷 、 ethyl 2-methylene-3-[(trifluoromethyl)sulfonyl]propanoate 在 偶氮二异丁腈 作用下， 反应 14.0h， 以83%的产率得到ethyl 2-(cyclohexylmethyl)acrylate
  参考文献：
  名称：

  Use of allylic triflones for allylation of C-H bonds

  摘要：

  Allylic triflones react with THF and cyclohexane and related molecules to undergo a trifluoromethyl radical mediated C-H functionalization reaction. Due to polar effects, the reactions benefit from the presence of electron-withdrawing group at the 2-position of the allylic triflones. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)00775-8
• 作为产物：
  描述：

  2-羟甲基丙烯酸乙酯 在 三溴化磷 作用下， 以 乙醚 为溶剂， 反应 15.0h， 生成 ethyl 2-methylene-3-[(trifluoromethyl)sulfonyl]propanoate
  参考文献：
  名称：

  Use of allylic triflones for allylation of C-H bonds

  摘要：

  Allylic triflones react with THF and cyclohexane and related molecules to undergo a trifluoromethyl radical mediated C-H functionalization reaction. Due to polar effects, the reactions benefit from the presence of electron-withdrawing group at the 2-position of the allylic triflones. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)00775-8

文献信息

• Polarity Umpolung Strategy for the Radical Alkylation of Alkenes
  作者：Jige Liu、Shuo Wu、Jiajia Yu、Chenxi Lu、Zhen Wu、Xinxin Wu、Xiao‐Song Xue、Chen Zhu

  DOI：10.1002/anie.201915837

  日期：2020.5.18

  Free radical-mediated alkylation of general alkenes is a challenging and largely unmet goal. Herein, we disclose a conceptually novel "polarity umpolung" strategy for radical alkylation of alkenes using a portfolio of easily-accessed, dual-function alkylating reagents. This is achieved by substituting inherently nucleophilic alkyl radicals with electrophilic sulfone-decorated surrogates, thus inverting

  自由基介导的一般烯烃的烷基化是一个具有挑战性且很大程度上未实现的目标。在这里，我们公开了一种概念上新颖的“极性化学极化”策略，该策略使用易于获得的双功能烷基化试剂进行烯烃的自由基烷基化。这可以通过用亲电砜修饰的替代物取代固有的亲核烷基自由基，从而改变通常的反应方式。随着烷基化，额外的杂芳基或肟基通过连续的对接和迁移过程同时并入烯烃，从而产生有价值的产品。该反应在温和条件下显示出宽泛的官能团耐受性。该协议为复杂的天然产物和含有烯烃部分的药物分子的后期修饰打开了新的前景。
• Trifluoromethyl-Radical-Mediated Carbonylation of Alkanes Leading to Ethynyl Ketones
  作者：Yoshitaka Uenoyama、Takahide Fukuyama、Keisuke Morimoto、Osamu Nobuta、Hidefumi Nagai、Ilhyong Ryu

  DOI：10.1002/hlca.200690228

  日期：2006.10

  The carbonylation of alkanes 1 under radical-reaction conditions was examined by using ethynyl triflone A as the unimolecular chain-transfer (UMCT) reagent. Good to moderate yields of ethynyl ketones 2 were prepared by means of this three-component coupling reaction. Higher CO pressures as well as lower concentrations of triflone A improved the efficiency of the reaction over the direct addition, the

  使用乙炔基三氟甲酮A作为单分子链转移（UMCT）试剂，检查了自由基反应条件下烷烃1的羰基化作用。通过这种三组分偶联反应，制备了乙炔基酮2的良好至中等的产率。与直接添加相比，较高的CO压力和较低的三氟甲酮A浓度提高了反应效率，后者导致烷基化乙炔3。与与A的反应相反，环己烷（1a）与烯丙基三酮B的反应。（＝ 2-亚甲基-3-[[（三氟甲基）磺酰基]丙酸乙酯）在CO存在下得到羰基化产物的混合物，包括由环己烷，CO和烯丙基三氟乙烯乙的两个分子各自形成的8a。
• Chemospecific alkynylation of organic iodides
  作者：Jason Xiang、P.L. Fuchs

  DOI：10.1016/s0040-4039(98)01924-8

  日期：1998.11

  Organic iodides undergo chemospecific alkynylation with triisopropylsilylacetylenic triflone under photochemical irradiation. Examples include primary, secondary, and tertiary iodides. The reaction is compatible with many functional groups, such as alcohol, ester, amide, thiazole, and a potential p-elimination substrate. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.