Results 31 to 40 of about 10,956 (235)
Asymmetric Organocatalysis with Chiral Covalent Organic Frameworks
Organic Materials, 2021 Inspired by Mother Nature, the use of chiral covalent organic frameworks as heterogeneous asymmetric organocatalysts has arisen over the last decade as a new method in enantioselective synthesis.
Song-Chen Yu, Liang Cheng, Li Liu
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Enantioselective Organocatalytic Diels-Alder Trapping of Photochemically Generated Hydroxy-o-Quinodimethanes [PDF]
, 2016 The photoenolization/Diels-Alder strategy offers straightforward access to synthetically valuable benzannulated carbocyclic products. This historical light-triggered process has never before succumbed to efforts to develop an enantioselective catalytic ...
Cuadros, Sara +3 more
core +2 more sources
One-Pot Synthesis of Dioxime Oxalates
Molbank, 2022 Dioxime oxalates, a type of carbonyl oximes, are well-known as clean sources of iminyl radicals that undergo key organic chemistry transformations. A series of dioxime oxalates is reported in this manuscript, obtained by the reaction of the corresponding
Laura Adarve-Cardona +3 more
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Magnetic nanoparticle-supported organocatalysis
Green Processing and Synthesis, 2013 Magnetic nanoparticle (MNP)-supported catalysis is a new method to facilitate catalyst separation and reuse. This technique has recently been introduced for organocatalysis.
Huang Yibo, Zhang Wei
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NHC in Imidazolium Acetate Ionic Liquids: Actual or Potential Presence? [PDF]
, 2018 Ionic liquids (ILs) are considered in the majority of cases green solvents, due to their virtually null vapor pressure and to the easiness in recycling them.
Chiarotto, Isabella +4 more
core +2 more sources
Nature Communications, 2022 The combination of transition metal catalysis and organocatalysis can afford both good reactivity and selectivity. Here, the authors present an α − propargylation of N-unprotected amino acid esters with propargylic alcohol derivatives via dual nickel and
Fang Zhu +5 more
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Asymmetric synthesis of tri- and tetrasubstituted trifluoromethyl dihydropyranones from alpha-aroyloxyaldehydes via NHC redox catalysis [PDF]
, 2014 We thank the Royal Society for a University Research Fellowship (A.D.S.), and the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013) ERC Grant Agreement No.
Davies, Alyn T. +3 more
core +4 more sources
Amyloid peptide mixtures: self-assembly, hydrogelation, nematic ordering and catalysts in aldol reactions [PDF]
, 2020 Morphological, spectroscopic and scattering studies of the self-assembly and aggregation process of mixtures of [RF]4 and P[RF]4 peptides (where: R = arginine; F = phenylalanine; P = proline), in solution and as hydrogels, were performed to obtain ...
Aguilar, Andrea +6 more
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Supramolecular Gels as Active Tools for Reaction Engineering
Angewandte Chemie, EarlyView.The unique combination of environments within gels, self‐assembled from low‐molecular‐weight gelators, offers the ability to control reactivity in new ways, achieving unique reaction outcomes, leading to the emerging concept of supramolecular gels as nanoreactors. Smart chemical engineering methods enable the use of such gels to fabricate materials and
David K. Smith
wiley +2 more sources
Evolution of design approaches in asymmetric organocatalysis over the last decade
Tetrahedron Chem, 2023 This perspective intends to cover the vast field of asymmetric organocatalysis and its evolution during the last ten years. This work has evaluated the corresponding timeline of the progression of the field concerning the main synthetic approaches as ...
Nika Melnyk +3 more
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