3,6-dimethyl-2,4-diphenylpyridine | 30342-48-4

• 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: 3,6-dimethyl-2,4-diphenylpyridine
• CAS: 30342-48-4
• 化学式: C₁₉H₁₇N
• 分子量: 259.351
• InChiKey: UBVGVXMRQVHSCK-UHFFFAOYSA-N

物化性质

• 沸点：
  167-169 °C(Press: 2 Torr)
• 密度：
  1.055±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.9
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  12.9
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  苄叉丙酮 在 [RhCp_tCl₂]₂ 、 盐酸羟胺 、 sodium acetate 、 potassium carbonate 作用下， 以 乙醇 、 2,2,2-三氟乙醇 为溶剂， 反应 16.0h， 生成 2,6-dimethyl-3,4-diphenylpyridine 、 3,6-dimethyl-2,4-diphenylpyridine
  参考文献：
  名称：

  Pyridine synthesis from oximes and alkynesviarhodium(iii) catalysis: Cp* and Cp^tprovide complementary selectivity

  摘要：

  利用Rh(III)催化剂，在温和条件和低温下，通过易得α,β-不饱和肟与炔烃的合成反应，开发了吡啶的合成方法。研究发现，使用空间位阻不同的配体可以实现互补的选择性。

  DOI：

  10.1039/c1cc15248c

文献信息

• Synthesis of Highly Substituted Pyridines through Copper-Catalyzed Condensation of Oximes and α,β-Unsaturated Imines
  作者：Wei Wen Tan、Yew Jin Ong、Naohiko Yoshikai

  DOI：10.1002/anie.201704378

  日期：2017.7.3

  A copper-catalyzed condensation reaction of oxime acetates and α,β-unsaturated ketimines to give pyridine derivatives is reported. The reaction features mild conditions, high functional-group compatibility, and high regioselectivity with respect to unsymmetrical oxime acetates, thus allowing the preparation of a wide range of polysubstituted pyridines, many of which are not readily accessible by conventional

  据报道，乙酸肟肟和α，β-不饱和酮亚胺在铜催化下缩合反应生成吡啶衍生物。该反应具有温和的条件，相对于不对称肟肟酸酯的高官能团相容性和高的区域选择性，因此可以制备多种多取代的吡啶，其中许多不易通过常规缩合方法获得。
• Rhodium(III)-Catalyzed Synthesis of Pyridines from α,β-Unsaturated Ketoximes and Internal Alkynes
  作者：Xingwei Li、Shunsuke Chiba、Pei Too、Toshiharu Noji、Ying Lim

  DOI：10.1055/s-0031-1289556

  日期：2011.12

  beta-unsaturated oximes and internal alkynes has been developed using [Cp*RhCl2](2)-CsOPiv as the catalyst system. The present transformation is carried out by a redox-neutral sequence of vinylic C-H rhodation, alkyne insertion, and C-N bond formation of the putative vinyl rhodium intermediate with the oxime nitrogen, where the N-O bond of oxime derivatives could work as an internal oxidant to maintain the catalytic

  使用 [Cp*RhCl2](2)-CsOPiv 作为催化剂体系开发了一种从 α、β-不饱和肟和内部炔烃合成高度取代的吡啶的方法。目前的转化是通过乙烯基 CH 化、炔插入和 CN 键形成的氧化还原中性序列与肟氮形成推定的乙烯基铑中间体，其中肟衍生物的 NO 键可以作为内部氧化剂来维持催化循环。
• Rhenium-Catalyzed Regioselective Synthesis of Multisubstituted Pyridines from β-Enamino Ketones and Alkynes via C–C Bond Cleavage
  作者：Shun-ichi Yamamoto、Kana Okamoto、Makiko Murakoso、Yoichiro Kuninobu、Kazuhiko Takai

  DOI：10.1021/ol301273j

  日期：2012.6.15

  A new method is described for the regioselective synthesis of multisubstituted pyridine derivatives. Treatment of N-acetyl beta-enamino ketones with alkynes in the presence of the rhenium catalyst, Re-2(CO)(10), gives multisubstituted pyridines regioselectively. In this reaction, the N-acetyl moieties are important for the selective formation of the multisubstituted pyridines. This reaction proceeds via insertion of alkynes into a carbon carbon single bond of beta-enamino ketones, intramolecular nucleophilic cyclization, and elimination of acetic acid.
• Organic Electroluminescence Device
  申请人：UDC Ireland

  公开号：US20160079545A1

  公开（公告）日：2016-03-17

  An object of the present invention is to provide an organic electroluminescence device having excellent light emission efficiency and durability, in particular, durability when driving at a high temperature. Provided is an organic electroluminescence device including on a substrate a pair of electrodes, and at least one layer of an organic layer including a light emitting layer containing a light emitting material disposed between the electrodes, wherein the light emitting layer includes at least each one of specific indolocarbazole derivatives and specific condensed ring metal complexes.