Electrochemical selenation of phosphonates and phosphine oxides
作者:Shengmei Guo、Sen Li、Zhebin Zhang、Wenjie Yan、Hu Cai
DOI:10.1016/j.tetlet.2019.151566
日期:2020.3
electrocatalytic strategy for the synthesis of organoselenophospho-rus between phosphonates /phosphine oxides and selenols/diselenides is reported. The reaction was performed with metal-, base- and oxidant-free at room temperature, and affords the selenophosphorus products in good to excellent yields. The good tolerance of substituents enables the reaction more attractive in the preparation of organoselenophosphorus
Highly atom-economical, catalyst-free, and solvent-free phosphorylation of chalcogenides
作者:Rakhee Choudhary、Pratibha Singh、Rekha Bai、Mahesh C. Sharma、Satpal Singh Badsara
DOI:10.1039/c9ob01921a
日期:——
Silica gel promoted, catalyst-free and solvent-free S–P, Se–P and Te–P bond formations to obtain phosphinothioates, phosphoroselenoates, and phosphorotelluroates respectively in good to excellent yields are described.
Accelerating Electrochemical Synthesis through Automated Flow: Efficient Synthesis of Chalcogenophosphites
作者:Thomas Wirth、Nasser Amri
DOI:10.1055/s-0040-1707141
日期:2020.12
Integrated electrochemical reactors in automated flow systems have been utilised for chalcogenophosphite formations. Multiple electrochemical reactions can be performed using a programmed sequence in a fully autonomous way. Differently functionalised chalcogenophosphites have been efficiently synthesised in short reaction times.
A Novel and General Method for the Formation of S-Aryl, Se-Aryl, and Te-Aryl Phosphorochalcogenoates
作者:Guo Tang、Yu-Fen Zhao、Yu-Xing Gao、Yu Cao
DOI:10.1055/s-0028-1088012
日期:2009.4
A new and general method for the synthesis of S-, Se-, and Te-aryl phosphorochalcogenoates (chalcogenophosphates) has been developed. S-P, Se-P, and Te-P bonds were formed by the coupling of readily available dialkyl phosphites with diaryl dichalcogenides at 30 ËC in dimethyl sulfoxide in the presence of catalytic amounts of copper iodide and diethylamine. The reaction proceeded smoothly without exclusion of moisture or air.
Free Radical Reaction of Dialkyl Phosphites and Organic Dichalcogenides: A New Facile and Convenient Preparation of Arylselenophosphates
作者:Qing Xu、Chun-Gen Liang、Xian Huang
DOI:10.1081/scc-120022165
日期:2003.1.8
Abstract Azobisisobutyronitrile-initiated freeradicalreaction of dialkylphosphites with diaryl diselenides afforded arylselenophosphates in high yields. Arylthiophosphates and aryltellurophosphates can also be synthesized by similar reaction of diaryl disulfides and diaryl ditellurides with dialkylphosphites.