4-(5-chlorothiophen-2-yl)benzonitrile | 1309790-81-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-(5-chlorothiophen-2-yl)benzonitrile
• 英文别名: 4-(5-Chlorothiophen-2-yl)benzonitrile
• CAS: 1309790-81-5
• 化学式: C₁₁H₆ClNS
• 分子量: 219.694
• InChiKey: CCAXCZFGEIGFSO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  52
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4-(5-chlorothiophen-2-yl)benzonitrile 、 三甲基乙酰氯 在 iron(III)-acetylacetonate 、 4-氟苯乙烯 、 (4-Me₂NC₆H₄)2Zn(iPr)MgCl 、 copper(I) cyanide di(lithium chloride) 作用下， 以 四氢呋喃 为溶剂， 反应 16.5h， 以62%的产率得到4-(5-pivaloylthiophen-2-yl)benzonitrile
  参考文献：
  名称：

  铁或共催化的Cl / Zn交换制备多官能锌有机金属化合物

  摘要：

  新的铁或钴催化的Cl / Zn交换反应可将芳基，杂芳基以及烷基氯直接转化为相应的锌试剂。该方法耐受诸如腈或酯的官能团。明显地，仲和叔烷基氯是用于Cl / Zn交换的合适的底物。

  DOI：

  10.1021/ol201100p
• 作为产物：
  描述：

  4-(2-thienyl)benzonitrile 在 tert-butylammonium hexafluorophosphate(V) 、 lithium chloride 作用下， 以 乙醇 、 乙腈 为溶剂， 以35 %的产率得到4-(5-chlorothiophen-2-yl)benzonitrile
  参考文献：
  名称：

  取代噻吩的电化学选择性单氯化和多氯化

  摘要：

  开发了一种绿色高效的电化学方法，用于 2-取代噻吩的选择性一氯化、二氯化和三氯化。

  DOI：

  10.1002/ejoc.202300880

文献信息

• Bis(imino)acenaphthene (BIAN)-Supported <i>N</i>-Heterocyclic Carbene Palladium Complexes with Ancillary Ligands: Readily Activated Precatalysts for Direct C–H Arylation of Thiophenes
  作者：Di-Zhong Zheng、Dong-Hui Li、Huan Liu、Youxiang Shao、Zhuofeng Ke、Feng-Shou Liu

  DOI：10.1021/acs.organomet.2c00007

  日期：2022.4.25

  thiophenes with (hetero)aryl bromides by bulky bis(imino)acenaphthene (BIAN)-supported N-heterocyclic carbene palladium complexes. The relationship between the structure of palladium complexes with ancillary ligands and catalytic properties was discussed. Upon a low palladium loading of 0.01–0.05 mol %, the bulky palladium complex was successfully used to catalyze the cross-coupling of a variety of thiophens

  我们在此报告了通过庞大的双（亚氨基）苊（BIAN）负载的N将噻吩与（杂）芳基溴化物的高效直接 C-H 芳基化-杂环卡宾钯配合物。讨论了钯与辅助配体的结构与催化性能之间的关系。在 0.01-0.05 mol% 的低钯负载量下，庞大的钯络合物成功地用于在有氧条件下催化各种噻吩与（杂）芳基溴化物的交叉偶联。此外，它提供了一种在好氧反应条件下获得具有高分子量和高 HT 值的聚 (3-己基噻吩) 的实用且直接的途径。为了了解转化机制，对直接芳基化进行了实验研究和 DFT 计算，这支持了 Pd (0) /Pd (II) CMD 过程的参与。
• A C–H Borylation Approach to Suzuki–Miyaura Coupling of Typically Unstable 2–Heteroaryl and Polyfluorophenyl Boronates
  作者：Daniel W. Robbins、John F. Hartwig

  DOI：10.1021/ol301570t

  日期：2012.8.17

  A method for the synthesis of biaryls and heterobiaryls from arenes and haloarenes without the intermediacy of unstable boronic acids is described. Pinacol boronate esters that are analogous to unstable boronic acids are formed in high yield by iridium-catalyzed C-H borylation of heteroarenes and fluoroarenes. These boronates are stable in the solid state or in solution and can be generated and used in situ. They couple with aryl halides in the presence of simple palladium catalysts, providing a convenient route to biaryl and heteroaryl products that have been challenging to prepare via boronic acids.
• Aerobic and Efficient Direct Arylation of Five-Membered Heteroarenes and Their Benzocondensed Derivatives with Aryl Bromides by Bulky α-Hydroxyimine Palladium Complexes
  作者：Bao-Tian Luo、Huan Liu、Zhi-Jie Lin、Jingxing Jiang、Dong-Sheng Shen、Rui-Zhi Liu、Zhuofeng Ke、Feng-Shou Liu

  DOI：10.1021/acs.organomet.5b00181

  日期：2015.10.26

  In the present work, a series of alpha-hydroxyimine palladium complexes with bulky substituents (i.e., [Ar-N=C(R)-C(R)(2)-OH]PdCl2} (C1, R = Me, Ar = 2-diphenylmethyl-4,6-dimethylphenyl; C2, R = Me, Ar = 2,6-bis(diphenylmethyl)-4-methylphenyl; C3, R = Me, Ar = 2,6-bis(diphenylinethyl)-4-methyoxylphenyl; C4, R = Me, Ar = 2,6-bis(diphenylmethyl)-4-chlorophenyl; C5, R = Ph, Ar = 2,6-dimethylphenyl; C6, R = Ph, Ar = 2,6-diisopropylphenyl)) were synthesized and characterized. The structures of palladium complexes C1 and C2 were determined by X-ray diffraction. These bidentate N,O-palladium complexes were applied for direct arylation under aerobic conditions. The effects of the reaction conditions and ligand substitution on the catalytic activity were evaluated. Upon a low palladium loading of 0.5 mol %, the bulky palladium complex C6 was successfully used to catalyze the cross-coupling of a variety of five-membered heteroarenes and their benzo-condensed derivatives with (hetero)aryl bromides. The mechanistic investigation on the direct arylation supported the involvement of a Pd(0)/Pd(II) CMD process.