Visible-light C–heteroatom bond cleavage and detoxification of chemical warfare agents using titania-supported gold nanoparticles as photocatalyst
作者:Ştefan Neaţu、Bogdan Cojocaru、Vasile I. Pârvulescu、Vasile Şomoghi、Mercedes Alvaro、Hermenegildo Garcia
DOI:10.1039/c0jm00345j
日期:——
Gold nanoparticles supported on TiO2 effect the detoxification of soman and VX nerve gases and yperite vesicant agent at room temperature upon visible light illumination.
A new, practical, synthesis of β-ketophosphonates relying on the conversion of the organolithium reagentfrom a dialkyl methylphosphonate into the correspondingorganocopperreagent, and its reaction with acylchlorides is described. The structure of the intermediate organocopperreagents is discussed.
Dimethyl α-trimethylsilylbenzylphosphonate was allowed to react with carbonylcompounds in the presence of fluoride ion to give the corresponding olefins in fairly good yields. Use of CsF in tetrahydrofuran gave the best result. On the other hand, dimethyl trimethylsilylmethylphosphonate was allowed to react similarly with benzophenone to afford 1,1-diphenylethylene, dimethyl methylphosphonate, and
Abstract Reactions between three thiophosphoryl esters and borontribromide are reported. O,O,O-triethyl phosphorothionate (1) and O,O-diethyl methanephosphonothionate (5) gave substituted oxathiaphosphaboretanes 4 and 7 respectively. O-methyl diphenyl-phosphinothionate (9) led to the complex 11 and the corresponding oxathiaphosphaboretane 12. In order to establish the mechanism, reactions were monitored