Hexaalkylguanidinium salts as ionic liquids – applications in titanium and aluminium alcoholate assisted synthesis
作者:Maria Arkhipova、Svetlana Eichel、Gerhard Maas
DOI:10.1039/c4ra09567g
日期:——
hexaalkylguanidinium-based roomtemperature ionic liquids was screened. The solvent/solute combinations which displayed the highest alcoholate solubility and stability were applied as Lewis-acidic catalytic media for several dehydrating cyclocondensations: lactamisation of ω-aminocarboxylic acids, directamidation of carboxylicacids, synthesis of oxazolines from carboxylicacids and 2-aminoethanol, lactonisation