2-(thiophen-2-ylethynyl)tetrahydrofuran | 1519058-91-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: 2-(thiophen-2-ylethynyl)tetrahydrofuran
• 英文别名: 2-(2-Thiophen-2-ylethynyl)oxolane；2-(2-thiophen-2-ylethynyl)oxolane
• CAS: 1519058-91-3
• 化学式: C₁₀H₁₀OS
• 分子量: 178.255
• InChiKey: WWXIDMHKEUBSNZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  37.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  四氢呋喃 、 2-(bromoethynyl)thiophene 在 sodium fluoride 作用下， 反应 39.0h， 以67%的产率得到2-(thiophen-2-ylethynyl)tetrahydrofuran
  参考文献：
  名称：

  Synthesis of 2-Alkynyltetrahydrofuran Derivatives from Tetrahydrofuran and Alkynyl Bromides

  摘要：

  An efficient and general method for the synthesis of 2-alkynyltetrahydrofuran was developed. The regioselective functionalization of the C(sp(3))-H bond adjacent to an oxygen atom with various alkynyl bromides has been achieved under transition-metal-free reaction conditions. Sodium fluoride was found, for the first time, to promote the efficient functionalization process remarkably. Moreover, 1,2-dibromostyrenes were also found to be effective in this method forming 2-alkenyltetrahydrofurans.

  DOI：

  10.1055/s-0033-1338534

文献信息

• Functionalisation of ethereal-based saturated heterocycles with concomitant aerobic C–H activation and C–C bond formation
  作者：Nehaal Ahmed、Richard J. Spears、Tom D. Sheppard、Vijay Chudasama

  DOI：10.1039/d2sc01626e

  日期：——

  emphasis on sustainable synthesis, aerobic C–H activation (the use of oxygen in air to activate C–H bonds) represents a highly attractive conduit for the development of novel synthetic methodologies. Herein, we report the air mediated functionalisation of various saturated heterocycles and ethers via aerobically generated radical intermediates to form new C–C bonds using acetylenic and vinyl triflones as radical

  随着对可持续合成的日益重视，有氧 C-H 活化（使用空气中的氧气来激活 C-H 键）代表了开发新型合成方法的极具吸引力的渠道。在此，我们报道了空气介导的各种饱和杂环和醚的功能化，通过需氧产生的自由基中间体，使用炔属和乙烯基三氟甲砜作为自由基受体形成新的 C-C 键。这使得能够获得各种具有丰富合成价值的炔属和乙烯基取代的饱和杂环。机理研究和控制反应支持基于好氧自由基的 C-H 活化机制。
• Synthesis of 2-Alkynyltetrahydrofuran Derivatives from Tetrahydrofuran and Alkynyl Bromides
  作者：Yun Liang、Yuan Yang、Hui Huang、Xiaoyun Zhang、Weilan Zeng

  DOI：10.1055/s-0033-1338534

  日期：——

  An efficient and general method for the synthesis of 2-alkynyltetrahydrofuran was developed. The regioselective functionalization of the C(sp(3))-H bond adjacent to an oxygen atom with various alkynyl bromides has been achieved under transition-metal-free reaction conditions. Sodium fluoride was found, for the first time, to promote the efficient functionalization process remarkably. Moreover, 1,2-dibromostyrenes were also found to be effective in this method forming 2-alkenyltetrahydrofurans.