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Direct Synthesis of Dialkylphosphites from White Phosphorus by Ziman Cai; Xiangzhe Zeng; Yumeng Zhang; Yan Liu; Guo Tang; Yufen Zhao is a Chemistry article available to read on EtoBox.

What is Direct Synthesis of Dialkylphosphites from White Phosphorus about?

Dialkyl phosphites (DAPIs), traditionally prepared from hazardous and corrosive PCl 3 , are the fundamental reactive starting materials used in organophosphorus chemistry. Here, a KBr-mediated synthesis of DAPIs involving P 4 , alcohols and water is presented. With the use of silica gel as the catalyst, oxone as the safe oxidant, industrially important (EtO) 2 P(O)H, (i-PrO) 2 P(O)H and (MeO) 2 P(O)H are prepared in 70-90% yields. Furthermore, rare metal extractant bis(2-ethylhexyl) phosphate (D2EHPA) is obtained in 73% yield. The reaction is characterized by a complete conversion of white phosphorus. Moreover, this method can be easily adapted to large-scale preparation.

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Author

Ziman Cai; Xiangzhe Zeng; Yumeng Zhang; Yan Liu; Guo Tang; Yufen Zhao

Publisher

Wiley

Published

2022

Language

EN

Field

Chemistry (Physical Sciences)