Synthesis of Optically Active α-Amino Ester Derived Pentasubstituted Guanidines and Hexasubstituted Guanidinium Salts as Potential Ionic Liquids
作者:Jürgen Liebscher、Jabbar Shah
DOI:10.1055/s-2008-1032204
日期:2008.3
Tetrasubstituted urea derived chloroamidinium salts reacted with α-amino esters to give new chiral pentasubstituted guanidines. Further alkylation with methyl iodide provided hexa-substituted guanidinium salts, which represent new chiral room temperature ionic liquids.