Cu/
<scp>Picolinamides‐Catalyzed</scp>
Coupling of (Hetero)aryl Halides with Secondary Phosphine Oxides and Phosphite
<sup>†</sup>
作者:Chao Fang、Bangguo Wei、Dawei Ma
DOI:10.1002/cjoc.202100354
日期:2021.11
Some 4-hydroxy-picolinic acid derived amides were revealed as more efficient ligands for Cu-catalyzed coupling of (hetero)aryl halides with secondary phosphine oxides and phosphites. Only 3—5 mol% CuI and ligands were required to ensure coupling with a number of (hetero)aryl bromides and iodides to complete at 120 oC in 10—20 h.
一些 4-羟基-吡啶甲酸衍生的酰胺被揭示为更有效的配体,用于(杂)芳基卤化物与仲氧化膦和亚磷酸酯的铜催化偶联。仅需要 3-5 mol% CuI 和配体即可确保与许多(杂)芳基溴化物和碘化物的偶联在 120 o C 下在 10-20 小时内完成。
Visible-light-induced ligand-free RuCl<sub>3</sub> catalyzed C–H phosphorylation in water
P-Arylation in water has been developed via cross-coupling of arylhalides with diphenylphosphine oxide (Ph2P(O)H) and (RP)-(−)-menthyl benzylphosphinate catalyzed by NiCl2·6H2O/Zn under relatively mild conditions.
NiCl 2 ·6H 2 O / Zn催化的芳基卤化物与二苯基膦氧化物(Ph 2 P(O)H)和(R P)-(-)-薄荷基苄基次膦酸酯的交叉偶联已开发了水中的P-芳基化。相对温和的条件。
Visible-Light-Induced Metal-/Photocatalyst-Free C–H Bond Imidation of Arenes
In this study, a visible-light-induced intermolecular C-H bond imidation of arenes was achieved at ambient condition. By using simple phthalimide with (diacetoxyiodo)benzene and molecular iodine, direct metal-/photocatalyst-free C-N bond formation was achieved. The imidation protocol was designed by using time-dependent density functional theory calculations and experimentally demonstrated for 28 substrates
deep-blue emitter PhImPOTD based on phenathroimidazole was synthesized, which is incorporated by an electron-donating dibenzothiophene unit and electron-withdrawing phenanthroimidazole and diphenylphosphine oxide moieties. Furthermore, the weak π–π stacking and intermolecular aggregation render the photoluminescence quantum yield is as high as 0.34 in the solid state. Non-doped organiclightemitting diodes
合成了一种新型的基于吩噻咪唑的深蓝色发射体PhImPOTD,将其与给电子二苯并噻吩单元,吸电子菲并咪唑和二苯基膦氧化物部分结合。此外,弱的π-π堆积和分子间聚集使固态的光致发光量子产率高达0.34。基于PhImPOTD发射器的非掺杂有机发光二极管(OLED)表现出3.6 V的低导通电压,1.13 cd A -1的有利效率以及国际照明委员会(CIE)坐标的深蓝色发射(0.15,0.08)。CIE非常接近NTSC(国家电视标准委员会)蓝色标准(CIE:0.14、0.08)。飞镖还用作蓝光发射器,并用作黄光发射器(PO-01)的主体,以制造白色有机发光二极管(WOLED)。在1000 cd m -2的亮度下,前视最大CE为4.83 cd A -1,CIE坐标为(0.32,0.32)。而且,单载波设备清楚地证明了PhImPOTD的典型双极主导特性。这项工作不仅证明了菲并咪唑单元是构建深蓝色发射材料