Addition of P–H species to carbonyl groups, namely the Pudovik reaction, normally delivers hydroxyl phosphorus compounds, along with phosphate byproducts in some cases. A few controllable systems starting from phosphites were set up to mainly provide the phosphates. Herein, we present a highly selective protocol starting from phosphonate precursors leading to phosphinate derivatives. Enantioenriched phosphinates
A new protocol for the dearylation of arylphosphine oxides was developed using sodium hydride (NaH) in the presence of lithium iodide (LiI). The transient sodium phosphinite could be functionalized with a range of electrophiles in a one-pot fashion.
Fast and Chemoselective Addition of Highly Polarized Lithium Phosphides Generated in Deep Eutectic Solvents to Aldehydes and Epoxides
作者:Luciana Cicco、Alba Fombona‐Pascual、Alba Sánchez‐Condado、Gabino A. Carriedo、Filippo M. Perna、Vito Capriati、Alejandro Presa Soto、Joaquín García‐Álvarez
DOI:10.1002/cssc.202001449
日期:2020.9.18
solvents as sustainable reaction media, at roomtemperature and in the absence of protecting atmosphere, through direct deprotonation of both aliphatic and aromatic secondary phosphines (HPR2) by n‐BuLi. The subsequent addition of in‐situ generated LiPR2 to aldehydes or epoxides proceeded quickly and chemoselectively, thereby allowing the straightforward access to the corresponding α‐ or β‐hydroxy phosphine