A novel synthetic route for (parent) phosphorus-containing cycloalkanes such as phosphetanes, phospholanes, 5 phosphinanes and phosphepanes and their organo-substituted derivatives is reported. For the first time the parent phospholane was synthesised.
The synthesis, complexation and catalysis with enantiopure single-atom-bridged diphosphorus ligands is reviewed, with 161 references.
The review summarizes the increasing applications of the chiral bisphosphine ligand Ph-BPE in catalytic asymmetric reactions in the past twenty years.
A chlorine- and solvent-free, ionic liquid-catalyzed method was developed for the synthesis of cyclic phosphinic amides and cyclic phosphinates by the MW assisted aminolysis of phosphinates, and the alcoholysis of phosphinic amides, respectively.
The imidazolium/phosphate zwitterionic liquid synthesised in this study satisfies all properties required for efficient cellulosic bioethanol production.