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.
Nickel-catalyzed C–P cross-coupling of diphenylphosphine oxide with aryl chlorides
作者:Hong-Yu Zhang、Meng Sun、Yan-Na Ma、Qiu-Ping Tian、Shang-Dong Yang
DOI:10.1039/c2ob26874d
日期:——
diarylphosphine oxide compounds via a Ni-catalyzed cross-coupling of arylchlorides with R2P(O)H has been developed. Notably, this process exhibits the following very attractive features: (i) the process is simpler and operates under mild reaction conditions; (ii) the process is generally cheaper in part because the more accessible arylchloride is used to form the C–P bond; (iii) the process avoids the need
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。
Decarbonylative C–P Bond Formation Using Aromatic Esters and Organophosphorus Compounds
作者:Ryota Isshiki、Kei Muto、Junichiro Yamaguchi
DOI:10.1021/acs.orglett.8b00080
日期:2018.2.16
Ni-catalyzed C–P bond formation was achieved using aromatic esters as unconventional aryl sources. The key to success was the use of a thiophene-based diphosphine ligand (dcypt). Several aromatic esters including heteroaromatics can be coupled with phosphine oxides and phosphates, providing aryl phosphorus compounds. The synthetic utility of the method was demonstrated by application of the present
Ni-catalyzed construction of C–P bonds from electron-deficient phenols via the in situ aryl C–O activation by PyBroP
作者:Yu-Long Zhao、Guo-Jie Wu、Fu-She Han
DOI:10.1039/c2cc31718d
日期:——
The CâP bond forming reaction using electron-deficient phenol substrates was considerably challenging. Herein, we present a new protocol that allows for one-pot construction of CâP bonds via the cross-coupling of phenols and phosphine oxide or phosphite in the presence of a nickel catalyst.