2,6-bis(3-methoxyphenyl)pyridine | 1160096-69-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: 2,6-bis(3-methoxyphenyl)pyridine
• CAS: 1160096-69-4
• 化学式: C₁₉H₁₇NO₂
• 分子量: 291.349
• InChiKey: VCYGIGCOHAIDPA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  31.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,6-bis(3-methoxyphenyl)pyridine 在 ammonia borane 、 三(五氟苯基)硼烷 作用下， 以 甲苯 为溶剂， 反应 6.0h， 以80%的产率得到cis-2,6-bis(3-methoxyphenyl)piperidine
  参考文献：
  名称：

  硼烷与氨硼烷的硼烷催化的吡啶加氢转移

  摘要：

  通过使用氨硼烷作为氢源，首次成功实现了硼烷催化的吡啶的无金属转移加氢，以44-88％的产率提供了中等至优异的顺式选择性的各种哌啶。不需要高压H 2的容易处理使得该转移氢化实用且有用。

  DOI：

  10.1021/acs.orglett.6b02610
• 作为产物：
  描述：

  tris-(3-methoxy-phenyl)-bismuthane 、 2,6-二溴吡啶 在 potassium acetate 、 palladium diacetate 、 三苯基膦 作用下， 以 N-甲基吡咯烷酮 为溶剂， 反应 2.0h， 以93%的产率得到2,6-bis(3-methoxyphenyl)pyridine
  参考文献：
  名称：

  三芳基铋在与溴吡啶和喹啉的区域选择性交叉偶联反应中作为三重芳基转移试剂

  摘要：

  公开了在 Pd 催化条件下使用溴吡啶和溴喹啉与三芳基铋作为亚化学计量量的三重偶联试剂的交叉偶联研究。与单-和二溴吡啶基底物的反应性很高，并且单-和双-偶联是区域选择性地进行的。以高产率形成了单芳基和二芳基吡啶库。一锅法提供了对称和不对称二芳基吡啶的简单直接合成。使用三芳基铋试剂实现了 2-溴和 3-溴喹啉的芳基化。该研究表明，三芳基铋可用作三重芳基化试剂，用于在 Pd 催化条件下通过与溴吡啶和溴喹啉偶联合成芳基吡啶和喹啉。

  DOI：

  10.1002/ejoc.201402455

文献信息

• Syntheses of Pyrroles, Pyridines, and Ketonitriles via Catalytic Carbopalladation of Dinitriles
  作者：Linjun Qi、Renhao Li、Xinrong Yao、Qianqian Zhen、Pengqing Ye、Yinlin Shao、Jiuxi Chen

  DOI：10.1021/acs.joc.9b02999

  日期：2020.1.17

  The first example of the Pd-catalyzed addition of organoboron reagents to dinitriles, as an efficient means of preparing 2,5-diarylpyrroles and 2,6-diarylpyridines, has been discussed here. Furthermore, the highly selective carbopalladation of dinitriles with organoboron reagents to give long-chain ketonitriles has been developed as well. Based on the broad scope of substrates, excellent functional

  本文讨论了Pd催化向二腈中添加有机硼试剂的第一个例子，这是制备2，5-二芳基吡咯和2，6-二芳基吡啶的有效方法。此外，还开发了用有机硼试剂对二腈进行高度选择性的碳巴巴定反应以生成长链酮腈。基于底物的广泛范围，优异的官能团耐受性和可商购的底物的使用，预期芳基硼酸和二腈的Pd催化加成反应在未来的合成方法中将是重要的。
• PROCESS FOR PRODUCTION OF DISULFONIC ACID COMPOUND, ASYMMETRIC MANNICH CATALYST, PROCESS FOR PRODUCTION OF -AMINOCARBONYL DERIVATIVE, AND NOVEL DISULFONATE SALT
  申请人：National University Corporation Nagoya University

  公开号：EP2208722A1

  公开（公告）日：2010-07-21

  Hexamethylphosphoramide (HMPA) was added to a reaction vessel containing (R)-1,1'-binaphthyl-2,2'-dithiol and potassium hydroxide. The vessel was purged with oxygen and stirred at 80°C for 5 days under 7 atmospheres of oxygen. After being cooled to room temperature, the reaction product was purified to yield potassium (R)-1,1'-binaphthyl-2,2'-disulfonate. The (R)-1,1'-binaphthyl-2,2'-disulfonic acid obtained from the disulfonate and 2,6-diphenylpyridine were stirred in acetonitrile, and then the solvent was evaporated under reduced pressure. Subsequently, magnesium sulfate and distilled CH2Cl2 were added to the reaction product, and the mixture was stirred at room temperature for 30 minutes. The resulting solution was cooled to 0°C. Benzaldehyde imine whose nitrogen is protected with Cbz and subsequently acetyl acetone were dropped into the solution over a period of 1 hour. The resulting mixture was further stirred at 0°C for 30 minutes. A corresponding β-aminocarbonyl derivative was thus produced with an yield of 91% and an enantiomeric excess of 90% ee.

  在装有 (R)-1,1'-联萘-2,2'-二硫醇和氢氧化钾的反应容器中加入六甲基磷酰胺（HMPA）。在 7 个大气压的氧气条件下，用氧气吹扫该容器并在 80°C 下搅拌 5 天。冷却至室温后，纯化反应产物，得到(R)-1,1'-联萘-2,2'-二磺酸钾。将从二磺酸盐中得到的 (R)-1,1'-联萘-2,2'-二磺酸和 2,6-二苯基吡啶在乙腈中搅拌，然后减压蒸发溶剂。随后，向反应产物中加入硫酸镁和蒸馏过的 CH2Cl2，并在室温下搅拌混合物 30 分钟。所得溶液冷却至 0°C。在 1 小时内向溶液中滴入氮被 Cbz 保护的苯甲醛亚胺，随后滴入乙酰丙酮。所得混合物在 0°C 下继续搅拌 30 分钟。由此制得相应的 β-氨基羰基衍生物，收率为 91%，对映体过量率为 90%ee。
• Gold(III), Mercury(II), and Palladium(II) Complexes of a Series of Isomeric Bis(mono- and dialkoxyphenyl)pyridines: Introduction of Gold through Transmetalation and Catalysis
  作者：Alice Jane McEllin、Christopher A. Goult、Golam Mohiuddin、Liam J. Curtis、Theo F. N. Tanner、Adrian C. Whitwood、Jason M. Lynam、Duncan W. Bruce

  DOI：10.1021/acs.inorgchem.3c03791

  日期：2024.4.29

  characterized by 1H, 13C1H}, and 199Hg NMR spectroscopy as well as, in several cases, by X-ray crystallography. Factors that may explain this unusual reactivity are discussed. In most cases, transmetalation to the related chlorogold(III) complex proceeded smoothly, although lower yields were obtained when starting from doubly mercurated precursors. Prompted by the propensity of these ligands to mercurate

  合成并表征了一系列异构双-2,6-(单烷氧基苯基)吡啶和双-2,6-(二烷氧基苯基)吡啶配体。为了制备氯金（III）配合物，首先制备了中间体氯汞（II）配合物，但与之前研究中观察到的结果不同，之前的研究观察到它们是不纯的且最多只能获得中等产率，这里合成了纯配合物，其中许多的产率相当高。根据配体上烷氧基链的取代模式，获得单汞和/或二汞配合物，其特征在于1 H、 13 C 1 H} 和199 Hg NMR 光谱，以及在某些情况下通过 X射线晶体学。讨论了可能解释这种不寻常反应性的因素。在大多数情况下，相关氯金(III)络合物的金属转移反应顺利进行，尽管从双汞化前体开始时产率较低。由于这些配体对汞的倾向，人们尝试进行直接氧化，但都没有成功。然而，可以制备钯(II)的二聚体、邻位金属化络合物，并且也易于金属转移成氯金(III)络合物，从而提供无汞合成。
• Metal-Free Borane-Catalyzed Highly Stereoselective Hydrogenation of Pyridines
  作者：Yongbing Liu、Haifeng Du

  DOI：10.1021/ja406761j

  日期：2013.9.4

  A metal-free direct hydrogenation of pyridines was successfully realized by using homogeneous borane catalysts generated from alkenes and HB(C6F5)(2) via in situ hydroboration. The reaction affords a broad range of piperidines in high yields with excellent cis stereoselectivities.
• Cross-coupling study of iodo/chloropyridines and 2-chloroquinoline with atom-economic triarylbismuth reagents under Pd-catalysis
  作者：Maddali L.N. Rao、Ritesh J. Dhanorkar

  DOI：10.1016/j.tet.2014.11.036

  日期：2015.1

  This study describes the palladium-catalyzed couplings of iodopyridines, chloropyridines, and chloroquinoline with atom-economic BiAr3 reagents in sub-stoichiometric loadings. Mono-arylations of iodo and chloropyridines produced arylpyridines in high yields. The couplings addressed with dihalopyridines have afforded chemo- and regio-selective coupling products. Arylations of 2-chloroquinoline with different triarylbismuth reagents demonstrated fruitful coupling reactivity under the established conditions. This sumptuous study demonstrates the remarkable cross-coupling reactivity of iodo/chloropyridines and chloroquinoline with triarylbismuth reagents. (C) 2014 Elsevier Ltd. All rights reserved.