New Chiral Ionic Liquids Based on Enantiopure Sulfate and Sulfonate Anions for Chiral Recognition
作者:Andreas Winkel、René Wilhelm
DOI:10.1002/ejoc.201000801
日期:2010.10
with chiral anions is described. Chiral sulfateanions were prepared from alcohols of the "chiral pool" in good yields. Subsequent ion metathesis resulted in new salts with tetrabutylphosphonium and 1-butyl-3-methylimidazolium (BMIM) cations. In addition, the synthesis of chiral sulfonateanions from (R)-phenylethylamine and formaldehyde-sodium hydrogen sulfate, or sodium vinyl sulfonate is shown, giving