1-(2-phenyl-2-oxoethyl)pyridinium iodide | 1137-94-6

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-(2-phenyl-2-oxoethyl)pyridinium iodide
• 英文别名: 1-(2-oxo-2-phenylethyl)pyridinium iodide；N-phenacylpyridinium iodide；1-(2-oxo-2-phenylethyl)pyridin-1-ium iodide；1-phenyl-2-pyridin-1-ium-1-ylethanone;iodide
• CAS: 1137-94-6
• 化学式: C₁₃H₁₂NO*I
• 分子量: 325.149
• InChiKey: MGHSHTLXYKVOEN-UHFFFAOYSA-M

物化性质

• 熔点：
  214 °C (decomp)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.14
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  21
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2933399090

反应信息

• 作为反应物：
  描述：

  1-(2-phenyl-2-oxoethyl)pyridinium iodide 在 四(三苯基膦)钯 、 ammonium acetate 、 potassium carbonate 作用下， 以 四氢呋喃 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 28.0h， 生成 N,N-diphenyl-4-(5-(6-phenyl-2,2'-bipyridin-4-yl)thiophen-2-yl)aniline
  参考文献：
  名称：

  Systematic Modulation of a Bichromic Cyclometalated Ruthenium(II) Scaffold Bearing a Redox-Active Triphenylamine Constituent

  摘要：

  The syntheses and physicochemical properties of nine bis-tridentate ruthenium(II) complexes containing one cyclometalating ligand furnished with terminal triphenylamine (TPA) substituents are reported. The structure of each complex conforms to a molecular scaffold formulated as [Ru-II(TPA-2,5-thiophene-pbpy)(Me(3)tctpy)] (pbpy = 6-phenyl-2,2'-bipyridine; Me(3)tctpy = trimethyl-4,4',4 ''-tricarboxylate-2,2':6',2 ''-terpyridine), where various electron-donating groups (EDGs) and electron-withdrawing groups (EWGs) are installed about the TPA unit and the anionic ring of the pbpy ligand. It is found that the redox chemistry of the Ru center and the TPA unit can be independently modulated by (i) placing EWGs (e.g., -CF3) or EDGs (e.g., -OMe) on the anionic ring of the pbpy ligand (substituted sites denoted as R-2 or R-3) and/or (ii) installing electron-donating substituents (e.g., -H, -Me, -OMe) para to the amine of the TPA group (i.e., R-1). The first oxidation potential is localized to the TPA unit when, for example, EDGs are placed at R-1 with EWGs at R-2 (e.g., the TPA(center dot+)/TPA(0) and Ru-III/Ru-II redox couples appear at +0.98 and +1.27 V vs NHE, respectively, when R-1 = -OMe and R-2 = -CF3). This situation is reversed when R-3 = EDG and R-1 = -H: TPA-based and metal-centered oxidation waves occur at +1.20 and +1.11 V vs NHE, respectively. The UV-vis spectrum for each complex is broad (e.g., absorption bands are extended from the UV region to beyond 800 nm in all cases) and intense (e.g., epsilon similar to 10(4) M-1 . cm(-1)) because of the overlapping intraligand charge-transfer and metal-to-ligand charge-transfer transitions. The information derived from this study offers guiding principles for modulating the physicochemical properties of bichromic cyclometalated ruthenium(II) complexes.

  DOI：

  10.1021/ic1025679
• 作为产物：
  描述：

  苯乙酮 在 吡啶 、 碘 作用下， 反应 6.0h， 以90%的产率得到1-(2-phenyl-2-oxoethyl)pyridinium iodide
  参考文献：
  名称：

  Molecular Iodine-Mediated Chemoselective Synthesis of Multisubstituted Pyridines through Catabolism and Reconstruction Behavior of Natural Amino Acids

  摘要：

  A new process has been developed for the selective construction of 2,6-disubstituted, 2,4,6-trisubstituted, and 3,5-disubstituted pyridines based on the catabolism and reconstruction behaviors of amino acids. Molecular iodine was used as a tandem catalyst to trigger the decarboxylation deamination of amino acids and to promote the subsequent formation of the pyridine products.

  DOI：

  10.1021/acs.orglett.5b03037

文献信息

• Phenyl-substituted 2,2′:6′,2″-terpyridine as a new series of fluorescent compounds—their photophysical properties and fluorescence tuning
  作者：Toshiki Mutai、Jin-Dong Cheon、Shinpei Arita、Koji Araki

  DOI：10.1039/b102685m

  日期：——

  Several phenyl-substituted 2,2′:6′,2″-terpyridines (tpy) were synthesized and it was found that 4′-phenyl tpy (ptp, 3) exhibited the most effective fluorescence, whose quantum yield was up to 0.64 in cyclohexane. For further study on tuning the fluorescence properties of ptp, different substituents were introduced into the p-position of the phenyl group. While Br- 10, Cl- 11, and CH3-ptp 12 showed their absorption and fluorescence in the same region as 3, those of NH2- 14 and Me2N-ptp 15 were observed at much longer wavelengths. In addition, fluorescence maxima of 14 and 15 showed large (>130 nm) solvent dependence. The difference between ground and excited state dipole moment (Δμ) for 15 was estimated to be 15.2 D by the Lippert–Mataga equation, indicating the intramolecular charge transfer (ICT) process. Semi-empirical MO calculation (MOPAC/AM1) demonstrated that the HOMO-1, HOMO and LUMO of 3, 10–12 were mainly localized on the phenyl (πph), tpy (πtpy) and tpy (π*tpy) part, respectively, indicating that the lowest energy absorption band of 3, 10–12 was the local excitation (πtpy–π*tpy). In the case of 14 and 15, which have an electron-donating substituent, πph instead of πtpy became the HOMO. Thus, the lowest energy absorption of 14 and 15 was an ICT transition (πph–π*tpy), and a large red shift of the fluorescence occurred. In these compounds, the energy level of πph is controlled without affecting that of πtpy and π*tpy, suggesting a novel approach for tuning the color of fluorescence.

  合成了几种苯基取代的2,2':6',2''-三联吡啶（tpy），发现4'-苯基tpy（ptp，3）具有最有效的荧光，其在环己烷中的量子产率高达0.64。为了进一步研究调节ptp的荧光性质，将不同的取代基引入苯环的p位。Br-10，Cl-11和CH3-ptp 12显示与3相同的吸收和荧光区域，而NH2-14和Me2N-ptp 15的吸收和荧光则在更长的波长处被观察到。此外，14和15的荧光最大值显示了大于130 nm的溶剂依赖性。根据Lippert-Mataga方程，15的基态和激发态偶极矩差（Δμ）估计为15.2 D，表明存在分子内电荷转移（ICT）过程。半经验MO计算（MOPAC/AM1）表明，3、10-12的HOMO-1、HOMO和LUMO主要分别定域在苯基（πph）、tpy（πtpy）和tpy（π*tpy）部分，表明3、10-12的最低能量吸收带是局部激发（πtpy-π*tpy）。对于具有电子给体取代基的14和15，πph而非πtpy成为HOMO。因此，14和15的最低能量吸收是ICT跃迁（πph-π*tpy），并发生了大幅度的荧光红移。在这些化合物中，πph的能级可以在不影响πtpy和π*tpy能级的情况下进行调控，这为调节荧光颜色提供了一种新方法。
• Efficient approach to 2-hydroxy-2,3-dihydrofuran derivatives and its application for the synthesis of novel 4-(1H-pyrazol-4-yl)pyridazines
  作者：Jun-Rui Ma、Wen-Ming Shu、Kai-Lu Zheng、Fan Ni、Guo-Dong Yin、An-Xin Wu

  DOI：10.1039/c5ob00163c

  日期：——

  A highly efficient method for the synthesis of 2-hydroxy-2,3-dihydrofuran derivatives from 1,4-enediones and phenacyl pyridinium halides via a domino reaction has been developed. This is a simple and beneficial strategy for the construction of 2-hydroxy-2,3-dihydrofuran compounds from readily available starting materials under mild conditions. Moreover, the application of this reaction provides a straightforward

  已经开发了一种通过多米诺反应从1，4-二酮和苯甲酰基吡啶鎓卤化物合成2-羟基-2,3-二氢呋喃衍生物的高效方法。这是在温和条件下由容易获得的起始原料构建2-羟基-2,3-二氢呋喃化合物的简单而有益的策略。而且，该反应的应用为合成新型的4-（1H-吡唑-4-基）哒嗪骨架提供了直接而实用的途径。
• Stereoselective Synthesis of Atropisomeric Bipyridine <i>N,N′</i>-Dioxides by Oxidative Coupling
  作者：Yasuaki Fukazawa、Vladimir Yu. Vaganov、Sergei A. Shipilovskikh、Aleksandr E. Rubtsov、Andrei V. Malkov

  DOI：10.1021/acs.orglett.9b01687

  日期：2019.6.21

  Bipyridine N,N′-dioxide is a structural fragment found in many bioactive compounds. Furthermore, chiral analogues secured their place as powerful Lewis base catalysts. The scope of the existing methods for the synthesis of atropisomeric bipyridine N,N′-dioxides is limited. Herein, we present a practical, highly chemo- and stereoselective method for oxidative dimerization of chiral pyridine N-oxides using

  联吡啶N，N'-二氧化物是许多生物活性化合物中的结构片段。此外，手性类似物确保了其作为强力路易斯碱催化剂的地位。合成阻转异构联吡啶N，N′-二氧化物的现有方法的范围是有限的。本文中，我们提出了一种实用的，高度化学和立体选择性的方法，用于使用O 2作为末端氧化剂对手性吡啶N-氧化物进行氧化二聚。合成了一系列13种轴向手性联吡啶N，N'-二氧化物，产率高达75％。
• Fluorocarbon derivatives of nitrogen. Part 19. Synthesis and mass spectrometric analysis of some pyridinium (tetrafluoro-4-pyridyl)-methylides
  作者：Ronald Eric Banks、William Thain Flowers、Suad Najmaldin Khaffaf

  DOI：10.1016/s0022-1139(00)82244-7

  日期：1991.6

  phenacylide [ → py+C̄(COPh)C5F4N-4] and a range of pyridinium alkoxycarbonylmethylides [ → py+C̄(CO2R)C5F4N-4, R = Me, Et, Prn, Pri, CH2CCl3, CH2CF3, CH2Ph, CH2CH2Ph]. A detailed analysis of the mass spectrometric fragmentation patterns for the alkoxycarbonyl compounds has been carried out. Spectroscopic data has also been obtained for pyridinium methylides synthesised from pyridinium ethoxycarbonylmethylide

  九个新的吡啶鎓methylides已经通过S合成Ñ从五氟4-氟吡啶鎓phenacylide的氩位移[→PY + C̄（COPH）C 5 ˚F 4 N-4]和一系列吡啶鎓alkoxycarbonylmethylides的[→PY +  C̄（CO 2 R）C 5 F 4 N-4，R = Me，Et，Pr n，Pr i，CH 2 CCl 3，CH 2 CF 3，CH 2 Ph，CH 2 CH 2Ph]。已经对烷氧基羰基化合物的质谱碎裂模式进行了详细分析。还获得了由吡啶鎓乙氧基羰基甲基化物和3-氯四氟吡啶或八氟甲苯合成的吡啶鎓甲基化物的光谱数据。
• Highlights on the synthesis of novel phenothiazine‐based azines scaffold as antioxidant agents
  作者：Wafaa S. Hamama、Moustafa A. Gouda、Hadwah A. Kamal El‐din、Hanafi H. Zoorob

  DOI：10.1002/jhet.3771

  日期：2020.1

  Azines derivatives of phenothiazines were synthetically constructed from one‐pot multicomponent reactions of 1‐(4a,10a‐dihydro‐10H‐phenothiazin‐2‐yl)ethan‐1‐one with various reagents. The obtained novel target compounds were evaluated as antioxidant agents using ABTS+• scavenging assay. Antioxidant results revealed that the incorporation of azines to phenothiazine ring system enhanced the activity

  吩噻嗪的嗪类衍生物是由1-（4a，10a-二氢-10 H-吩噻嗪-2-基）乙-1-酮与多种试剂的单锅多组分反应合成的。使用ABTS +•清除测定法将获得的新型目标化合物评估为抗氧化剂。抗氧化剂结果表明，将吩嗪并入吩噻嗪环系统中可以增强活性。此外，与标准化合物相比，化合物18可以防止因博来霉素-铁配合物的形成而对DNA造成的损害。