title: Acidic-functionalized ionic liquid as an efficient, green and reusable catalyst for hetero-Michael addition of nitrogen, sulfur and oxygen nucleophiles to α,β-unsaturated ketones.
abstract: A series of acidic-functionalized ionic liquids were synthesized and applied to the hetero-Michael addition of nitrogen, sulfur and oxygen nucleophiles to α,β-unsaturated ketones under solvent-free conditions. Notably, 1-methylimidazolium p-toluenesulfonic ([Hmim]OTs) was found to be the most efficient catalyst and could realize "homogeneous catalysis, two-phase separation". Additionally, the catalytic system has wide substrate scope and good to excellent yields (up to 99%) could be obtained at room temperature.
authors.affiliation: State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, and Graduate School of the Chinese Academy of Sciences, Lanzhou, 730000, PR China.
authors.forename: Feng
authors.initials: F
authors.lastname: Han
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
authors.forename: Chungu
authors.initials: C
authors.lastname: Xia
mesh_terms: D000143:Acids / Q000737:chemistry*; D002384:Catalysis; D052578:Ionic Liquids / Q000138:chemical synthesis / Q000737:chemistry*; D007659:Ketones / Q000737:chemistry*; D015394:Molecular Structure; D009584:Nitrogen / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D013455:Sulfur / Q000737:chemistry*
chemical_list: D000143:Acids; D052578:Ionic Liquids; D007659:Ketones; D013455:Sulfur; D009584:Nitrogen; D010100:Oxygen