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。
Nickel-Catalyzed Phosphorylation of Phenol Derivatives via C–O/P–H Cross-Coupling
作者:Jia Yang、Jing Xiao、Tieqiao Chen、Li-Biao Han
DOI:10.1021/acs.joc.6b00289
日期:2016.5.6
An efficient nickel-catalyzed phosphorylation of phenol derivatives with P(O)–H compounds via C–O/P–H cross-coupling is described. Under the reaction conditions, various phenyl pivalates coupled readily with hydrogen phosphoryl compounds to afford the corresponding coupling products aryl phosphonates and aryl phosphine oxides in good to high yields.
Experimental and Theoretical Study on Palladium-Catalyzed C–P Bond Formation via Direct Coupling of Triarylbismuths with P(O)–H Compounds
作者:Tao Wang、Shuai Sang、Liu Leo Liu、Hongwei Qiao、Yuxing Gao、Yufen Zhao
DOI:10.1021/jo402392t
日期:2014.1.17
A novel and highly efficient Pd-catalyzed cross-coupling of triarylbismuths with a variety of P(O)–H compounds has been developed that proceeds smoothly without exclusion of moisture or air and provides a general and powerful tool for the preparation of various valuable arylphosphonates, arylphosphinates, and arylphosphine oxides, with high atom-economy, operational simplicity of the procedure, and
A Ni-catalyzed cross-coupling reaction between aryl fluorides and dialkyl phosphonates [HP(O)(OR)2] (R = secondary alkyl groups) in the presence of potassium tert-butoxide as a base is reported. The reaction converted various aryl fluorides into the corresponding arylphosphonates even when electron-donating substituents were present on the aromatic ring. The combined experimental and computational
报道了在作为碱的叔丁醇钾存在下,芳基氟化物和膦酸二烷基酯[HP(O)(OR) 2 ](R =仲烷基)之间的Ni催化的交叉偶联反应。即使芳环上存在给电子取代基,该反应也将各种芳基氟化物转化为相应的芳基膦酸酯。结合实验和计算研究表明,Ni(0) 络合物与强给电子离子桥联的二聚亚磷酸酯配体系统 [P(OR) 2 O – K + ] 2螯合的 Ni-K +协同作用促进了周转-限制芳基氟化物的 C-F 键氧化加成。
Pd-catalyzed C–P coupling of heteroaryl boronic acid with H-phosphonate diester
We report herein a novel protocol to construct C-P bond from heteroaryl boronic acid with H-phosphonate diester under Pd-Ag catalyzed system without addition of base. This method, directly using commercial available heteroaryl boronic acid as the starting material, provides a new way to synthesize a variety of useful heteroaryl phosphonates. (C) 2016 Elsevier Ltd. All rights reserved.