WebThe BOX-decorated chiral Lewis acids are one of the most promising catalysts for not only enantioselective 1,2-addition chemistry but also 1,4-addition chemistry. The first … WebTwo air-stable novel Lewis acids of triphenylantimony(V) pentafluorbezenesulfonates (2) and perfluorooctanesulfonates (3) were successfully synthesized and characterized.X-ray studies and thermo-gravimetric analysis found that these complexes showed high anti-hydrolyzability and thermal stability.The high catalytic activity and excellent recyclability …
The Michael Addition Reaction of Indoles and α , β-Unsaturated …
Web31. mar 2014. · General Characteristics; The Michael reaction originally meant the 1,4-addition (conjugate addition) of simple anionic carbons to the electron poor double … WebA DFT study for the formation of imidazo[1,2c]pyrimidines through an intramolecular Michael addition Tetrahedron 62, 10408 (2006) A DFT study on the NHC catalyzed Michael addition of enols to a,bunsaturated acylazoliums. ... [3+2] and [2+4] cycloadducts in the Lewis acid catalysed reaction between methyl glyoxalate oxime and ... huntsman\u0027s-cup 6s
Molecules Free Full-Text Asymmetric Michael Addition in …
WebHowDihalogens Catalyze Michael Addition Reactions Trevor A. Hamlin, Israel Fern#ndez,* and F. Matthias Bickelhaupt* Abstract: We have quantum chemically … WebThe Michael addition reaction is a versatile synthetic methodology for the efficient coupling of electron poor olefins with a vast array of nucleophiles. This review outlines the role of the Michael addition reaction in … Webcatalyzed group transfer reactions, oxidations, insertions, reductions of olefins and ketones, and carbonyl addition reactions. Considerable effort has also been expended … huntsman\\u0027s-cup 6s