Efficient nickel-catalyzed phosphinylation of C–S bonds forming C–P bonds
作者:Jia Yang、Jing Xiao、Tieqiao Chen、Shuang-Feng Yin、Li-Biao Han
DOI:10.1039/c6cc06048j
日期:——
The first nickel-catalyzed phosphinylation of C–S bonds forming C–P bonds is developed. The reaction can proceed readily with the simple Ni(cod)2 at a loading down to 0.1 mol% at the 10 mmol scale. Various aryl sulfur compounds, i.e. sulfides, sulfoxides and sulfones all couple with P(O)–H compounds to produce the corresponding organophosphorus compounds, which provides an efficient new method for the construction of C–P bonds.
Visible-Light-Promoted Transition-Metal-Free Phosphinylation of Heteroaryl Halides in the Presence of Potassium <i>tert</i>-Butoxide
作者:Jia Yuan、Wai-Pong To、Zi-Yang Zhang、Chang-Duo Yue、Sixuan Meng、Jian Chen、Yungen Liu、Guang-Ao Yu、Chi-Ming Che
DOI:10.1021/acs.orglett.8b03265
日期:2018.12.21
visible-light-promoted C–P bond formation reaction in the absence of both transition metal and photoredox catalysts is disclosed. By employing easily available and inexpensive heteroaryl chlorides/bromides as substrates, a variety of heteroaryl phosphine oxides were obtained in moderate to good yields. This strategy provides a simple and efficient route to heteroaryl phosphine oxides.
Fluorinated organophosphorus(V) compounds are a very versatile class of compounds, but the synthetic methods available to make them bear the disadvantages of 1) occasional handling of toxic or pyrophoric PIII starting materials and 2) a dependence on hazardous fluorinating reagents such as XeF2. Herein, we present a simple solution and introduce a deoxygenative fluorination (DOF) approach that utilizes
Ni-Catalyzed C–P Coupling of Aryl, Benzyl, or Allyl Ammonium Salts with P(O)H Compounds
作者:Bo Yang、Zhong-Xia Wang
DOI:10.1021/acs.joc.8b02926
日期:2019.2.1
C–P bonds via the nickel-catalyzed cross-coupling of organoammonium salts with appropriate phosphorus nucleophiles has been developed. Aryl-, pyridyl-, benzyl-, and allyl-ammonium triflates can be employed as the electrophiles. The employed phosphorus-based nucleophiles included diaryl/dibutyl phosphine oxide, dialkylphosphonates, and ethyl phenylphosphinate. Functional groups OMe, CN, CF3, F, Cl
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。