3-(3-methoxyphenyl)benzo[b]thiophene | 24257-22-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻吩类
• 英文名称: 3-(3-methoxyphenyl)benzo[b]thiophene
• 英文别名: 3-(3-Methoxyphenyl)-1-benzothiophene
• CAS: 24257-22-5
• 化学式: C₁₅H₁₂OS
• 分子量: 240.326
• InChiKey: SZYQPYHUSPNNFX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  37.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-(3-methoxyphenyl)benzo[b]thiophene 在 (+)-1,2-双((2S,5S)-2,5-二苯基膦)乙烷 、 氢气 、 双氧水 、 nickel diacetate 、 溶剂黄146 作用下， 以 甲醇 、 2,2,2-三氟乙醇 、 水 为溶剂， 80.0~100.0 ℃ 、7.09 MPa 条件下， 反应 50.0h， 生成 (S)-3-(3-methoxyphenyl)-2,3-dihydrobenzo[b]thiophene 1,1-dioxide
  参考文献：
  名称：

  镍催化的环烯基砜苯并[ b ]噻吩1，1-二氧化物的不对称加氢机理研究

  摘要：

  首次成功开发了一种基于廉价过渡金属镍的高效催化体系，用于挑战性环状烯基砜，3-取代的苯并[ b ]噻吩1,1-二氧化物的不对称加氢。以高收率（95-99％）和优异的对映选择性（90-99％ee）获得了一系列氢化产物，手性2,3-二氢苯并[ b ]噻吩1,1-二氧化物。根据非线性效应研究，氘标记实验和DFT计算研究的结果，为这种镍催化的不对称氢化提供了合理的催化机理，表明该氢化产物中两个加成的氢原子可能来自H 2。 通过插入Ni–H和随后的氢解反应。

  DOI：

  10.1021/acs.orglett.0c03723
• 作为产物：
  描述：

  3-氯苯甲醚 、 苯并噻吩 在 5%-palladium/activated carbon 、 caesium carbonate 、 copper(l) chloride 作用下， 以 1,4-二氧六环 为溶剂， 反应 48.0h， 以85%的产率得到3-(3-methoxyphenyl)benzo[b]thiophene
  参考文献：
  名称：

  Completely Regioselective Direct C–H Functionalization of Benzo[b]thiophenes Using a Simple Heterogeneous Catalyst

  摘要：

  The first completely selective C3 C-H arylation of benzo[b]thiophenes is reported, demonstrating previously unexploited reactivity of palladium. Benzo[b]thiophenes are coupled with readily available aryl chlorides using a ligand-free, dual catalytic system of heterogeneous Pd/C and CuCl. The reaction is operationally simple and insensitive to air and moisture, and it provides valuable products with complete selectivity. Significant investigations into the nature of the active catalytic species and mechanistic considerations are discussed.

  DOI：

  10.1021/ja403130g

文献信息

• Room-Temperature Direct β-Arylation of Thiophenes and Benzo[<i>b</i>]thiophenes and Kinetic Evidence for a Heck-type Pathway
  作者：Chiara Colletto、Saidul Islam、Francisco Juliá-Hernández、Igor Larrosa

  DOI：10.1021/jacs.5b12242

  日期：2016.2.10

  The first example of a regioselective β-arylation of benzo[b]thiophenes and thiophenes at room temperature with aryl iodides as coupling partners is reported. This methodology stands out for its operational simplicity: no prefunctionalization of either starting material is required, the reaction is insensitive to air and moisture, and it proceeds at room temperature. The mild conditions afford wide

  报道了苯并[b]噻吩和噻吩在室温下以芳基碘作为偶联伙伴的区域选择性β-芳基化的第一个例子。这种方法因其操作简单而突出：不需要任何一种起始材料的预官能化，反应对空气和水分不敏感，并且在室温下进行。温和的条件提供了广泛的官能团耐受性，通常具有完全的区域选择性和高产率，从而形成高效的催化系统。包括 13C 和 2H KIE 在内的初步机理研究表明，该过程是通过噻吩双键上的协同碳钯化作用发生的，然后是碱基辅助的抗消除作用。
• Para-coupling of phenols with C2/C3-substituted benzothiophene S-oxides
  作者：Zhen He、Tony Biremond、Gregory J.P. Perry、David J. Procter

  DOI：10.1016/j.tet.2020.131315

  日期：2020.12

  C2 and C3 substituted benzothiophenes are common structures in medicinal and materials chemistry. The cross-coupling of phenols with benzothiophenes is a useful route towards these important molecules. In this report we reveal an efficient C–H/C–H-type cross-coupling of benzothiophenes, activated as their S-oxides, with phenols to give C2/C3 arylated benzothiophenes. Whereas previous reports describe

  C2和C3取代的苯并噻吩是药物和材料化学中的常见结构。苯酚与苯并噻吩的交叉偶联是通往这些重要分子的有用途径。在本报告中，我们揭示了苯并噻吩类，活化作为其的有效C-H / C-H型交叉耦合小号-oxides，与酚，得到C2 / C3芳基化的苯并噻吩。尽管先前的报道描述了在酚和亚砜之间在邻位处的交叉偶联，但是该方法允许通常被邻位封端的酚的对官能化。
• Palladium-Catalyzed Phosphine-Free Direct C–H Arylation of Benzothiophenes and Benzofurans Involving MIDA Boronates
  作者：Mengmeng Huang、Yangjie Wu、Zhiwei Wang、Yabo Li、Beiqi Yan

  DOI：10.1055/s-0034-1379606

  日期：——

  With high regioselectivity, a series of benzoheterocyclic compounds were synthesized via palladiium-catalyzed phosphine-free C-H arylation of benzothiophenes/benzofurans with aryl MIDA boronates at 30-50 degrees C in moderate to excellent yields. MIDA boronates were used in C-H arylation of heterocycles for the first time. Under the optimal conditions, the benzothiophenes could be transformed into the beta-arylbenzothiophenes, and the benzofurans gave only alpha-aryl-substituted products.
• Aryl Dance Reaction of Arylbenzoheteroles
  作者：Hikaru Nakahara、Junichiro Yamaguchi

  DOI：10.1021/acs.orglett.2c03442

  日期：2022.11.4
• Completely Regioselective Direct C–H Functionalization of Benzo[<i>b</i>]thiophenes Using a Simple Heterogeneous Catalyst
  作者：Dan-Tam D. Tang、Karl D. Collins、Frank Glorius

  DOI：10.1021/ja403130g

  日期：2013.5.22

  The first completely selective C3 C-H arylation of benzo[b]thiophenes is reported, demonstrating previously unexploited reactivity of palladium. Benzo[b]thiophenes are coupled with readily available aryl chlorides using a ligand-free, dual catalytic system of heterogeneous Pd/C and CuCl. The reaction is operationally simple and insensitive to air and moisture, and it provides valuable products with complete selectivity. Significant investigations into the nature of the active catalytic species and mechanistic considerations are discussed.