-promoted protocol for the selective and controllable esterification of P(O)OH compounds using O-nucleophiles (alcohols and phenols) as efficient esterification reagents is described. This method features a high efficiency and good functional-group tolerance, meaning a simple way to synthesize a broad spectrum of phosphinic and phosphoric acid esters from basic starting materials with moderate to excellent
Electrochemical Dehydrogenative Coupling of Alcohols with Hydrogen Phosphoryl Compounds: A Green Protocol for P−O Bond Formation
作者:Qian‐Yu Li、Toreshettahally R. Swaroop、Cheng Hou、Zi‐Qiang Wang、Ying‐Ming Pan、Hai‐Tao Tang
DOI:10.1002/adsc.201801723
日期:2019.4.16
This study reports the environment‐friendly electrochemical transformation of structurally diverse phosphorus compounds and alcohol into phosphonates in the presence of ammonium iodide as electrolyte and redox catalyst in acetonitrile at ambient temperature. This method for P−O bondformation exhibits remarkable features, such as transition metal‐ and oxidant‐free conditions. A reliable mechanism is
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
Electrochemical Dehydrogenative Phosphorylation of Alcohols for the Synthesis of Organophosphinates
作者:Lingling Deng、Yang Wang、Haibo Mei、Yi Pan、Jianlin Han
DOI:10.1021/acs.joc.8b02882
日期:2019.1.18
An eco-friendly and efficient method for the synthesis of organophosphinates via an electrochemical cross-dehydrogenative-coupling reaction between alcohols and secondary phosphine oxides has been developed. This electrochemical reaction was conducted at room temperature without the addition of any oxidant, metal catalyst, or additive, which provides a new strategy for the synthesis of organophosphinates