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Fast, solvent-free and hydrogen-bonding-mediated asymmetric Michael addition in a ball mill
The chiral squaramide derivatives as hydrogen bonding catalyst for the Michael addition reactions of 1,3-dicarbonyl compounds to nitroolefins under solvent-free conditions was developed using aExpand
A chiral thioureido acid as an effective additive for enantioselective organocatalytic Michael additions of nitroolefins.
A novel and effective organocatalytic system consisting of pyrrolidinyl-thioimidazole and a chiral thioureido acid efficiently catalyzed the asymmetric Michael addition reactions of ketones toExpand
Fischer Indole Synthesis in Brønsted Acidic Ionic Liquids: A Green, Mild, and Regiospecific Reaction System
A novel one-pot Fischer indole synthesis approach has been developed by using Bronsted acidic ionic liquids as dual solvent-catalysts. Yields of 83–97 % were obtained after reaction in BMImHSO4 atExpand
Pyrrolidine–pyridinium based organocatalysts for highly enantioselective Michael addition of cyclohexanone to nitroalkenes
Abstract A novel class of pyrrolidine–pyridinium based organocatalysts has been developed and demonstrated to efficiently catalyze the asymmetric Michael addition reactions of unmodifiedExpand
In situ enamine activation in aqueous salt solutions: highly efficient asymmetric organocatalytic Diels-Alder reaction of cyclohexenones with nitroolefins.
Deep-sea Diels-Alder: The asymmetric organocatalytic Diels-Alder reaction of cyclohexenones with aromatic nitroolefins can be carried out in seawater and brine. The reaction proceeds by an in situExpand
A Novel Enantioselective Catalytic Tandem Oxa‐Michael–Henry Reaction: One‐Pot Organocatalytic Asymmetric Synthesis of 3‐Nitro‐2H‐chromenes
An enantioselective oxa-Michael-Henry reaction of substituted salicylaldehydes with nitroolefins that proceeds though an aromatic iminium activation (AIA) has been developed by using a chiralExpand
Fast and Selective Dehydrogenative C–H/C–H Arylation Using Mechanochemistry
A fast and site-selective biaryl synthesis via dehydrogenative C–H/C–H arylation in a ball mill was developed. In this paper, both electron-deficient oximes and electron-rich anilides quickly andExpand
Mild and versatile nitrate-promoted C-H bond fluorination.
A novel and facile C-H bond fluorination proceeds under remarkably mild conditions (close to room temperature in most cases). Both aromatic and olefinic C(sp(2))-H bonds with a wide range ofExpand