A mild electroassisted synthesis of (hetero)arylphosphonates
作者:Stéphane Sengmany、Anthony Ollivier、Erwan Le Gall、Eric Léonel
DOI:10.1039/c8ob00500a
日期:——
electrochemically-assisted synthesis of (hetero)arylphosphonates from (hetero)arylhalides and dimethyl phosphite is described. Very mild and simple conditions are employed as the cross-coupling is carried out in galvanostatic mode, in an undivided cell at room temperature, using NiBr2bpy as the easily available pre-catalyst and acetonitrile as the solvent. In addition, both aryl bromides and iodides can be used
A novel CuO-catalyzed coupling reaction of arylhydrazines with trialkylphosphites to afford arylphosphonates is described. The reaction proceeded at 80 °C in air without external reductants, oxidants, and ligands.
C–P bond formation of cyclophanyl-, and aryl halides <i>via</i> a UV-induced photo Arbuzov reaction: a versatile portal to phosphonate-grafted scaffolds
A new versatile method for the C–P bond formation of (hetero)aryl halides with trimethyl phosphite via a UV-induced photo-Arbuzov reaction, accessing diverse phosphonate-grafted arenes, heteroarenes and co-facially stacked cyclophanes under mild reaction conditions without the need for catalyst, additives, or base is developed. The UV-induced photo-Arbuzov protocol has a wide synthetic scope with large
4-Biarylyl-1-phenylazetidin-2-ones useful for the treatment of hypercholesterolemia are disclosed. The compounds are of the general formula
in which
represents an aryl or heteroaryl residue; Ar represents an aryl residue; U is a two to six atom chain; and the R's represent substituents.
4-Biarylyl-1-phenylazetidin-2-ones useful for the treatment of hypercholesterolemia are disclosed. The compounds are of the general formula
in which
represents an aryl or heteroaryl residue; Ar represents an aryl residue; U is a two to six atom chain; and the R's represent substituents.