Redox-Neutral P(O)–N Coupling between P(O)–H Compounds and Azides via Dual Copper and Photoredox Catalysis
作者:Yanan Wu、Ken Chen、Xia Ge、Panpan Ma、Zhiyuan Xu、Hongjian Lu、Guigen Li
DOI:10.1021/acs.orglett.0c02207
日期:2020.8.7
We report a redox-neutral P(O)–N coupling reaction of P(O)–H compounds with azides via photoredox and copper catalysis, providing new access to useful phosphinamides, phosphonamides, and phosphoramides. This transformation tolerates a wide range of nucleophilic functionalities including alcohol and amine nucleophiles, which makes up for the deficiency of classical nitrogen nucleophilic substitution
Practical Synthesis of Phosphinic Amides/Phosphoramidates through Catalytic Oxidative Coupling of Amines and P(O)−H Compounds
作者:Chen Tan、Xinyuan Liu、Huanxin Jia、Xiaowen Zhao、Jian Chen、Zhiyong Wang、Jiajing Tan
DOI:10.1002/chem.201904237
日期:2020.1.16
Herein, we report a highly efficient ZnI2 -triggered oxidative cross-coupling reaction of P(O)-H compounds and amines. This operationally simple protocol provides unprecedented generic access to phosphinic amides/phosphoramidate derivatives in good yields and short reaction time. Besides, the reaction proceeds under mild conditions, which avoids the use of hazardous reagents, and is applicable to scale-up
A phosphoryl radical-initiated Atherton-Todd-type reaction using air as the radical initiator and CHCl3 as the halogenating reagent for the phosphorylation of alcohols, phenols, and amines has been developed. This novel transformation provides a highly efficient route to important phosphinates, phosphinic amides, and phosphoramidates in up to 99% yield with a broad substrate scope under very mild conditions
ORGANIC PHOSPHORUS COMPOUNDS 106.<sup>1</sup> A <sup>31</sup>P-NMR STUDY OF PHOSPHINOUS-, PHOSPHINIC-, AND THIOPHOSPHINIC AMIDES
作者:Ludwig Maier、Peter J. Diel
DOI:10.1080/10426509608037973
日期:1996.8.1
Abstract The synthesis, physical, chemical and spectroscopic properties of eight different types of phosphinous-, phosphinic- and thiophosphinic amides are reported. It is shown that the 31P-chem. shifts of tertiary amides are at lower magnetic field than that of secondary amides. As an exception, in the bis(tertiary butyl) series this trend is reversed.
Primary Amination of Ar<sub>2</sub>P(O)–H with (NH<sub>4</sub>)<sub>2</sub>CO<sub>3</sub> as an Ammonia Source under Simple and Mild Conditions and Its Extension to the Construction of Various P–N or P–O Bonds
作者:Yushi Tan、Ya-Ping Han、Yuecheng Zhang、Hong-Yu Zhang、Jiquan Zhao、Shang-Dong Yang
DOI:10.1021/acs.joc.1c02933
日期:2022.3.4
reagents with stable and readily available ammonium carbonate as an ammonia source is disclosed herein for the first time. This ethyl bromoacetate-mediated primary amination proceeds smoothly undermild and simple conditions, without any metal catalyst or oxidant. Moreover, this method is also appropriate for the reaction of Ar2P(O)–H with a variety of amines, alcohols, and phenols to construct P–N or P–O
本文首次公开了一种简便有效的方法,用于从 Ar 2 P(O)-H 试剂与稳定且易于获得的碳酸铵作为氨源合成伯膦酰胺。这种溴乙酸乙酯介导的伯胺化在温和简单的条件下顺利进行,无需任何金属催化剂或氧化剂。此外,该方法还适用于Ar 2 P(O)-H与多种胺类、醇类和酚类反应构建P-N或P-O键,操作方便,官能团耐受性好。 ,和广泛的底物范围。