Anion functionalized ionic liquid from artificial sugar: a sustainable pathway for diverse bis-enol derivatives†
Abstract
An artificial sugar saccharine based anion-functionalized ionic liquid [Bmim]Sac was synthesized and used for new and straightforward strategies for the construction of a diverse range of bis-enols. The advantage of this methodology is the use of a non-toxic, inexpensive and reusable catalyst, and high atom economy and easy purification make this an efficient process. Besides, a probable mechanism describing dual activation of the ionic liquid as well as dual hydrogen bonding of the saccharinate anion has been proposed.