5-氟-2,3-二氢苯并呋喃-7-甲醛 | 245762-36-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 香豆素
• 中文名称: 5-氟-2,3-二氢苯并呋喃-7-甲醛
• 英文名称: 5-fluoro-2,3-dihydrobenzofuran-7-carbaldehyde
• 英文别名: 5-Fluoro-2,3-dihydrobenzofuran-7-carboxaldehyde；5-fluoro-2,3-dihydro-1-benzofuran-7-carbaldehyde
• CAS: 245762-36-1
• 化学式: C₉H₇FO₂
• mdl: MFCD07368090
• 分子量: 166.152
• InChiKey: PSKHGYXPIDMLIX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.222
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-氟-2,3-二氢苯并呋喃-7-甲醛 在 4,4'-硫联二(6-叔丁基-2-甲基苯酚) 、 间氯过氧苯甲酸 、 sodium hydroxide 作用下， 以 二氯甲烷 、 乙醇 为溶剂， 反应 19.0h， 以50%的产率得到5-氟-2,3-二氢苯并呋喃-7-醇
  参考文献：
  名称：

  Studies toward the Discovery of the Next Generation of Antidepressants. 3. Dual 5-HT_1A and Serotonin Transporter Affinity within a Class of N-Aryloxyethylindolylalkylamines

  摘要：

  N-Aryloxylethylindolealkylamines (5) having dual 5-HT transporter and 5-HT1A affinity are described. These compounds represent truncated analogues of our previously reported piperidinyl derivatives (3). Compounds in this investigation were found to have more similar affinities and functional activities for the 5-HT1A receptor and 5-HT transporter. Though 5-HT1A antagonism is not consistently observed throughout series 5, several molecular features were found to be essential to obtain high and balanced activities. The proper placement of a heteroatom in the aryl ring and the length of the linkage used to tether the indole moiety had significant influence on 5-HT1A and 5-HT transporter affinities. Introduction of a halogen into the aryl ring usually lowered intrinsic activity and in some cases led to full 5-HT1A antagonists. Compounds 33 and 34 were observed to be full 5-HT1A antagonists with K-i values of approximately 30 nM for the 5-HT1A receptor and K-i values of 5 and 0.5 nM for the 5-HT transporter, respectively. Unfortunately, similar to our previous series (3), compounds in this report also had high affinity for the alpha(1) receptor.

  DOI：

  10.1021/jm0304010
• 作为产物：
  描述：

  2,6-二溴-4-氟苯酚 在 正丁基锂 、 potassium carbonate 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 生成 5-氟-2,3-二氢苯并呋喃-7-甲醛
  参考文献：
  名称：

  A practical approach to highly functionalized benzodihydrofurans

  摘要：

  A number of aromatic dibromides have been treated with 2-3 equivalents of n-butyllithium in order to initiate two sequential chemical events, a Parham cyclization and an intermolecular reaction with DME (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(00)00159-3

文献信息

• Chemoselective Cross-Coupling between Two Different and Unactivated C(aryl)–O Bonds Enabled by Chromium Catalysis
  作者：Jinghua Tang、Liu Leo Liu、Shangru Yang、Xuefeng Cong、Meiming Luo、Xiaoming Zeng

  DOI：10.1021/jacs.0c00283

  日期：2020.4.29

  combination of low-cost Cr(II) salt, 4,4-di-tert-butyl-2,2-dipyridyl (dtbpy) ligand and magnesium reductant shows high reactivity in promoting the reductive cross-coupling of aryl methyl ether derivatives with aryl esters, by cleavage and coupling of two different C(aryl)-O bonds under mild conditions. The formation of active low-valent Cr species by reduction of CrCl2 with Mg can be considered, which prefers

  我们在这里报告了两个不同且未活化的 C(芳基)-O 键与铬催化之间交叉耦合的第一个例子。低成本的 Cr(II) 盐、4,4-二叔丁基-2,2-二吡啶基 (dtbpy) 配体和镁还原剂的组合在促进芳基甲基醚衍生物与芳基酯，通过在温和条件下裂解和偶联两个不同的 C(芳基)-O 键。可以考虑通过用 Mg 还原 CrCl2 形成活性低价 Cr 物种，它更喜欢在 dtbpy 和邻亚氨基助剂的螯合帮助下最初激活苯基甲基醚的 C(芳基)-O 键。随后的连续还原、第二次 C(芳基)-O 活化和还原消除允许实现 C(芳基)-O/C(芳基)-O 键的选择性交叉偶联。
• Regio- and Chemoselective Kumada–Tamao–Corriu Reaction of Aryl Alkyl Ethers Catalyzed by Chromium Under Mild Conditions
  作者：Xuefeng Cong、Huarong Tang、Xiaoming Zeng

  DOI：10.1021/jacs.5b08621

  日期：2015.11.18

  the cross-coupling reactions with aryl ethers via C-O bond activation have attracted broad interest. However, the functionalizations of C-O bonds are mainly limited to nickel catalysis, and selectivity has long been a prominent challenge when several C-O bonds are present in the one molecule. We report here the first chromium-catalyzed selective cross-coupling reactions of aryl ethers with Grignard reagents

  作为一种环境友好的合成工具，通过 CO 键活化与芳基醚的交叉偶联反应引起了广泛的兴趣。然而，CO 键的功能化主要限于镍催化，当一个分子中存在多个 CO 键时，选择性一直是一个突出的挑战。我们在这里报告了第一个铬催化的芳基醚与格氏试剂通过 CO（烷基）键断裂的选择性交叉偶联反应。在室温下使用简单、廉价的铬 (II) 预催化剂结合亚氨基助剂实现了多种转化。它为高效和选择性地构建官能化芳香醛提供了新途径。
• N-ARYLOXYETHYLAMINE DERIVATIVES FOR THE TREATMENT OF DEPRESSION
  申请人：Wyeth

  公开号：EP1068184B1

  公开（公告）日：2002-09-04
• N-ARYLOXYETHYL-INDOLY-ALKYLAMINES FOR THE TREATMENT OF DEPRESSION (5-HT1A RECEPTOR ACTIVE AGENTS)
  申请人：AMERICAN HOME PRODUCTS CORPORATION

  公开号：EP1070050A1

  公开（公告）日：2001-01-24
• US4332952A
  申请人：——

  公开号：US4332952A

  公开（公告）日：1982-06-01