AbstractPhosphate esters play important roles as biological active principles and synthons in chemistry. An efficient metal‐free approach for the synthesis of phosphate esters through sp3 CH activation is described. By using tetrabutylammonium iodide (Bu4NI) as a catalyst and tert‐butyl hydroperoxide (TBHP) as an oxidant, various toluene derivatives and phosphorus nucleophiles are tolerated in this transformation, affording the corresponding products in moderate to good yields.magnified image
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
The trimethylsilyl triflate mediated reaction of benzyl diphenylphosphinate with allyltrimethylsilane or trimethylsilyl enolate afforded the corresponding cross-coupling products in good yields.