WebJul 22, 2011 · Raising the HOMO: 2,4-Dienals can react with nitroalkenes in trienamine-catalyzed asymmetric Diels–Alder reactions (see scheme).Crucial for the success is raising the HOMO energy of the diene through the introduction of appropriate substituents. The reaction exhibits unusually high enantioselectivity and exo selectivity; endo addition is … WebJun 21, 2010 · B has recently been introduced by Chen et al. as an efficient bifunctional catalyst of the asymmetric 1,3-dipolar cycloaddition of cyclic enones . Catalyst B greatly …

exo‐Selective Asymmetric Diels–Alder Reaction of 2,4‐Dienals …

WebEnantioselective Formal Aza-Diels–Alder Reactions of Enones with Cyclic Imines Catalyzed by Primary Aminothioureas. Journal of the American Chemical Society, … WebAn iridium complex catalyzes an environmentally friendly, efficient, and facile one-pot transfer hydrogenation of C=C bond of enones and reductive amination of C=N bond of imines in the presence of formic acid as hydrogen source in aqueous medium. This reaction provides a wide range of α-alkylated amines in excellent yield. linda scruggs bogart cause of death

A Morita–Baylis–Hillman Inspired Cross-Coupling Strategy for the …

WebFeb 9, 2024 · The reactivities of cyclic enones and α,β-unsaturated lactones were characterized by following the kinetics of their reactions with colored carbon-centered … WebSynthesis of Cyclic Enones via Direct Palladium-Catalyzed Aerobic Dehydrogenation of Ketones. Journal of the American Chemical Society, 133(37), 14566–14569. … WebOct 27, 2024 · The photochemical reaction of 3-carboxymethylcyclohexenone with a cyclohexene bearing a chiral auxiliary group has been examined in a DFT study. GIAO simulation of the NMR spectra (DFT/B3LYP/6-311G++(d,2p) level of theory) is not in agreement with the syn–anti–syn product described in the literature for this reaction but … linda scruggs bogart obituary