Results 11 to 20 of about 9,761,251 (311)
Asymmetric Organocatalyzed Phospha-Michael Addition to Iminochromenes [PDF]
, 2023 The potential of phosphites as nucleophiles for the synthesis of chiral chromene derivatives has been overlooked in the literature. Herein, we report a highly promising approach via asymmetric organocatalyzed phospha-Michael addition to iminochromenes ...
Isaac G., Sonsona +4 more
core +1 more source
Dearomative Michael addition involving enals and 2-nitrobenzofurans realized under NHC-catalysis [PDF]
, 2022 In the manuscript the first enantioselective dearomative Michael addition between α,β-unsaturated aldehydes and 2-nitrobenzofurans realized under N-heterocyclic carbene activation has been described.
Mateusz, Dyguda +3 more
core +1 more source
A new class of phthalimido-quinones synthesis
Orbital: The Electronic Journal of Chemistry, 2012 Four new Michael adducts from the reaction between 1,4-naphthoquinone and 2,3-dibromo-1,4-naphthoquinone with w-amino-N-alkylphthalamide derivatives were presented in this work.
Jeziane S. Alves +2 more
doaj +1 more source
International Journal of Electrochemical Science, 2007 Electrochemical oxidation of catechols (1a-e) has been studied in the presence of sulfite ion (3) as nucleophile in aqueous solution, using cyclic voltammetry and controlled-potential coulometry. The results indicate the participation of catechols (1a-e)
D. Nematollahi, E. Tammari, H. Karbasi
doaj +1 more source
Enantioselective Michael Addition of Water [PDF]
Chemistry – A European Journal, 2014 AbstractThe enantioselective Michael addition using water as both nucleophile and solvent has to date proved beyond the ability of synthetic chemists. Herein, the direct, enantioselective Michael addition of water in water to prepare important β‐hydroxy carbonyl compounds using whole cells of Rhodococcus strains is described.
Chen, B.S. (author) +3 more
openaire +4 more sources
Enantioselective Michael Addition: An Experimental Introduction to Asymmetric Synthesis [PDF]
, 2019 We adapted a classical asymmetric Michael addition for a 1-day experimental session (6-8 hrs) for third or fourth-year undergraduate students. The experiment follows up three steps : synthesis of a chiral Lewis Acid, LiAl(BINOL)2, then its use as a ...
Martin Tiano (5934035) +3 more
core +2 more sources
1,4-Dihydro-4-(nitromethyl)-2-phenyl-1-tosylquinoline-3-carbaldehyde
Molbank, 2016 An aza-Michael/Michael cascade reaction of 2-((E)-2-nitrovinyl)-N-tosylbenzenamine with 3-phenylpropiolaldehyde catalyzed by pyrrolidine has produced a new compound, 1,4-dihydro-4-(nitromethyl)-2-phenyl-1-tosylquinoline-3-carbaldehyde.
Kwang Min Ko, Sung-Gon Kim
doaj +1 more source
Molecules, 2022 Known as electrophiles, maleimides are often used as acceptors in Michael additions to produce succinimides. However, reactions with maleimides as nucleophiles for enantioselective functionalization are only rarely performed.
Hongwen Mu +4 more
doaj +1 more source
Electron-rich triarylphosphines as nucleophilic catalysts for oxa-Michael reactions
Beilstein Journal of Organic Chemistry, 2021 Electron-rich triarylphosphines, namely 4-(methoxyphenyl)diphenylphosphine (MMTPP) and tris(4-trimethoxyphenyl)phosphine (TMTPP), outperform commonly used triphenylphosphine (TPP) in catalyzing oxa-Michael additions.
Susanne M. Fischer +3 more
doaj +1 more source
Organocatalytic Asymmetric Deconjugative Michael Additions. [PDF]
ChemInform, 2006 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bell, Mark +2 more
openaire +3 more sources