Eco‐Mn Ecocatalysts: Toolbox for Sustainable and Green Lewis Acid Catalysis and Oxidation Reactions
Sign Up to like & getrecommendations! Published in 2020 at "ChemCatChem"
DOI: 10.1002/cctc.201901845
Abstract: Phytoextraction is one of the most promising phytotechnologies used to restore natural environments degraded by mining activities. In New Caledonia, a few plant species, which belong to the Grevillea genus, have the ability to extract… read more here.
Keywords: lewis acid; acid catalysis; ecocatalysts toolbox; eco ecocatalysts ... See more keywords
Entrapped NbOx clusters in MFI zeolite for sustainable acid catalysis
Sign Up to like & getrecommendations! Published in 2020 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2020.110361
Abstract: Abstract Entrapping the small NbOx clusters into MFI zeolite crystals was directly prepared via a facile hydrothermal method, assisting with the sodium citrate and EDTA-2Na to dissolve and chelate the niobium precursors. The existing states… read more here.
Keywords: clusters mfi; mfi zeolite; spectroscopy; acid catalysis ... See more keywords
Acid Catalysis in the Oxidation of Substrates by Mononuclear Manganese(III)-Aqua Complexes.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c00430
Abstract: Acids are known to enhance the reactivities of metal-oxygen intermediates, such as metal-oxo, -hydroperoxo, -peroxo, and -superoxo complexes, in biomimetic oxidation reactions. Although metal-aqua (and metal-hydroxo) complexes have been shown to be potent oxidants in… read more here.
Keywords: acid catalysis; oxidation; aqua complexes; aqua ... See more keywords
Cooperative Palladium/Brønsted Acid Catalysis toward the Highly Enantioselective Allenylation of β-Keto Esters.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c00179
Abstract: We report the first enantioselective allenylation of Pd enolates enabled by cooperative Pd/Brønsted acid catalysis employing β-keto esters and propargyl alcohols. The enantioselectivity originates solely from an in-situ-generated chiral metal enolate in an open transition… read more here.
Keywords: acid catalysis; nsted acid; keto esters; enantioselective allenylation ... See more keywords
Asymmetric Ketoalkylation/Rearrangement of Alkyenlfurans via Synergistic Photoredox/Brønsted Acid Catalysis.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c03040
Abstract: An enantioselective three-component rearrangement of alkenylfurans with various cycloalkyl silyl peroxides and anilines has been developed by merging photoredox catalysis with chiral Brønsted acid catalysis. This protocol provides expedient access to a broad spectrum of… read more here.
Keywords: acid catalysis; catalysis; asymmetric ketoalkylation; nsted acid ... See more keywords
Enantioselective syn- and anti-Alkoxyallylation of Aldehydes via Brønsted Acid Catalysis.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.8b02653
Abstract: A diastereo- and enantioselective alkoxyallylation via phosphoric acid catalysis was reported. Under the developed conditions, either 1,2- syn- or 1,2- anti-alkoxyallylation adducts were obtained in good yields with high enantioselectivities. read more here.
Keywords: syn anti; enantioselective syn; anti alkoxyallylation; acid catalysis ... See more keywords
Enantio- and Diastereoselective De Novo Synthesis of 3-Substituted Proline Derivatives via Cooperative Photoredox/Brønsted Acid Catalysis and Epimerization.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c12995
Abstract: Herein, a novel strategy for the catalytic asymmetric synthesis of enantioenriched 3-cis- and 3-trans-substituted prolines has been successfully established via an unprecedented cascade radical addition/cyclization enabled by synergistic photoredox/Brønsted acid catalysis and subsequent base-assisted epimerization.… read more here.
Keywords: acid catalysis; nsted acid; photoredox nsted; synthesis ... See more keywords
Chiral phosphoric acid catalysis: from numbers to insights.
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Society reviews"
DOI: 10.1039/c6cs00475j
Abstract: Chiral phosphoric acids (CPAs) have emerged as powerful organocatalysts for asymmetric reactions, and applications of computational quantum chemistry have revealed important insights into the activity and selectivity of these catalysts. In this tutorial review, we… read more here.
Keywords: chiral phosphoric; chemistry; numbers insights; phosphoric acid ... See more keywords
Brønsted acid catalysis of photosensitized cycloadditions†
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Science"
DOI: 10.1039/c9sc04822g
Abstract: Catalysis is central to contemporary synthetic chemistry. There has been a recent recognition that the rates of photochemical reactions can be profoundly impacted by the use of Lewis acid catalysts and co-catalysts. Herein, we show… read more here.
Keywords: nsted acid; catalysis photosensitized; chemistry; catalysis ... See more keywords
Chiral Lewis acid catalysis in a visible light-triggered cycloaddition/rearrangement cascade
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Science"
DOI: 10.1039/d2sc03159k
Abstract: Cascade (domino) reactions facilitate the formation of complex molecules from simple starting materials in a single operation. It was found that 1-naphthaldehyde derivatives can be converted to enantioenriched (82–96% ee) polycyclic benzoisochromenes via a cascade… read more here.
Keywords: acid catalysis; chiral lewis; catalysis visible; visible light ... See more keywords
Asymmetric Inverse-Electron-Demand Diels–Alder Reactions of 2-Pyrones by Lewis Acid Catalysis
Sign Up to like & getrecommendations! Published in 2021 at "Synlett"
DOI: 10.1055/a-1371-4391
Abstract: Diels–Alder reactions of 2-pyrones with alkenes can provide highly functionalized [2,2,2]-bicyclic lactones under mild reaction conditions. Synthetic utilizations of these reactions have been well demonstrated in natural-product synthesis. Although several catalytic asymmetric strategies have been… read more here.
Keywords: diels alder; acid catalysis; lewis acid; alder reactions ... See more keywords