The Todd-Atherton reaction of dialkyl thiophosphonates orO-alkyl piperididothiophosphonates with monoethanolamine vinyl ether afforded the corresponding amidoesters of thiophosphoricacid.
Synthesis of 2-pyridylthiophosphinic acids and 2-pyridylthiophosphonate monoesters via nucleophilic aromatic substitution
作者:Natsuhisa Oka、Kensuke Ori、Kaori Ando
DOI:10.1080/10426507.2016.1248763
日期:2017.4.3
were converted into N-methoxypyridinium sulfonates, which were then used for nucleophilic aromatic substitution with the H-thiophosphinate/thiophosphonate esters to afford 2-pyridylthiophosphinate monoesters and 2-pyridylthiophosphonate diesters. Finally, alkaline hydrolysis and subsequent neutralization afforded various 2-pyridylthiophosphinic acids and 2-pyridylthiophosphonate monoesters in good yields
The herbicidalactivity of 3-cyanopyridin-2-yl phosphates, which were designed according to the idea of a mechanism-based inactivator, is probably related to a phosphatase.
根据基于机制的灭活剂的思想设计的 3-氰基吡啶-2-基磷酸酯的除草活性可能与磷酸酶有关。
Blue LED-Promoted Syntheses of Phosphorothioates and Phosphorodithioates
作者:Bo-Ru Shen、Pratheepkumar Annamalai、Shih-Fang Wang、Rekha Bai、Chin-Fa Lee
DOI:10.1021/acs.joc.2c00323
日期:2022.7.15
An environmentally friendly and resourceful modular protocol for the synthesis of phosphorochalcogenoates, phosphorochalcogenothioates, and phosphinothioates under blue light-emitting diode irradiation is described. The blue LED-promoted P–S, P–Se, and P–Te bond constructions occurred under metal-free, ligand-free, oxidant-free, and photocatalyst-free conditions with minimum chemical waste generation
描述了一种在蓝色发光二极管照射下合成硫代磷酸酯、硫代磷酸酯和硫代磷酸酯的环保且资源丰富的模块化协议。蓝色 LED 促进的 P-S、P-Se 和 P-Te 键结构发生在无金属、无配体、无氧化剂和无光催化剂的条件下,化学废物产生最少,原子经济性高,提供了结果硫代磷酸酯、硫代硫代磷酸酯和硫代膦酸酯的产率从良好到优异。
Solvent-free base-controlled addition reaction of<i>H</i>-phosphonates and<i>H</i>-phosphine oxides to α-CF<sub>3</sub>styrenes: facile synthesis of β-CF<sub>3</sub>-substituted phosphonates and phosphine oxides
作者:Qianding Zeng、Ying Liu、Jingjing He、Yupian Deng、Pai Zheng、Zhudi Sun、Song Cao
DOI:10.1039/d3ob00681f
日期:——
β-trifluoromethyl-substituted phosphonates and phosphine oxides via hydrophosphonylation and hydrophosphinylation of α-(trifluoromethyl)styrenes with H-phosphonates and H-phosphine oxides, respectively, was developed. The reaction proceeded smoothly within 2 h at room temperature without the cleavage of the rather fragile C–F bond in α-(trifluoromethyl)styrenes and afforded a wide variety of structurally diverse