Results 41 to 50 of about 16,879 (311)
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
Organocatalysis in aqueous media [PDF]
Nature Reviews Chemistry, 2019 Even though enzymes are the cornerstones of living systems, it has so far proven difficult to deploy artificial catalysts in a biological setting. Organocatalysts are arguably well-suited artificial catalysts for this purpose because, compared with enzymes and inorganic catalysts, they are simpler, often less toxic and widely accessible.
Michelle P. van der Helm +2 more
openaire +4 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
doaj +1 more source
Catalyst design within asymmetric organocatalysis
WIREs Computational Molecular Science, 2022 The field of organocatalysis, more specifically asymmetric organocatalysis, is continuously expanding having grown significantly over the recent years. However, despite this exponential expansion, the ability to determine with any degree of certainty the
Iñigo Iribarren +2 more
semanticscholar +1 more source
Non-Covalent Organocatalyzed Domino Reactions Involving Oxindoles: Recent Advances
Molecules, 2017 The ubiquitous presence of spirooxindole architectures with several functionalities and stereogenic centers in bioactive molecules has been appealing for the development of novel methodologies seeking their preparation in high yields and selectivities ...
Tecla Gasperi +3 more
doaj +1 more source
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
Asymmetric additions to dienes catalysed by a dithiophosphoric acid. [PDF]
, 2011 Chiral Brønsted acids (proton donors) have been shown to facilitate a broad range of asymmetric chemical transformations under catalytic conditions without requiring additional toxic or expensive metals.
Hamilton, Gregory +4 more
core +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
doaj
Deconstructive Radical–Radical Coupling for Programmable Remote Acylation
Angewandte Chemie, EarlyView.A unified approach to access a variety of 1,n‐dicarbonyls through a radical‐promoted deconstructive process utilizing dual photocatalysis/carbene catalysis is reported. The utility of this strategy is demonstrated with a broad scope with robust functional group tolerance along with application in the preparation of γ‐amino esters, three‐component ...
Jing Cao +2 more
wiley +2 more sources
Molecules, 2019 Chirality is one of the most important attributes for its presence in a vast majority of bioactive natural products and pharmaceuticals. Asymmetric organocatalysis methods have emerged as a powerful methodology for the construction of highly ...
Zhonglei Wang
doaj +1 more source