4042-61-9Relevant articles and documents
Hydrolysis and alcoholysis of phosphinates and phosphonates
Harsági, Nikoletta,Keglevich, Gy?rgy,Sz?ll?si, Betti,Varga, Petra Regina
, (2021/11/04)
Phosphinic and phosphonic acids useful intermediates and biologically active compounds may be prepared from their esters: phosphinates and phosphonates, respectively, by acid-catalyzed hydrolysis either on conventional heating or on MW irradiation. The transesterification of alkyl phosphinates took place only in the presence of suitable ionic liquids as the catalysts. In the cases of phenylphosphonates, depending on the nature of the ionic liquid, the formation of the ester was accompanied by the fission of the C–O bond.
A robust and simple protocol for the synthesis of arylfluorophosphonates
Leypold, Mario,Wallace, Paal W.,Kljajic, Marko,Schittmayer, Matthias,Pletz, Jakob,Illaszewicz-Trattner, Carina,Guebitz, Georg M.,Birner-Gruenberger, Ruth,Breinbauer, Rolf
, p. 5619 - 5622 (2015/09/21)
Fluorophosphonates represent powerful probes for the identification and analysis of active serine hydrolases in activity based protein profiling. Although alkylphosphonofluoridates are widely used for such purposes, little is known about the synthesis and purification of arylphosphonofluoridates, which may be useful tools for screening enzyme activities toward aromatic esters. Our optimized route makes this subclass of transition state inhibitors broadly accessible for a diverse series of phosphonic acid derivatives using a combination of selective monoesterification with EDC·HCl and subsequent mild fluorination with DAST. All compounds were isolated as pure materials using a simple acid-base extraction protocol in 76-93% yields over two steps. These probes can be stored under an inert atmosphere at -24 °C for several months without significant degradation.
