Results 11 to 20 of about 2,895 (193)
Chiral 1H NMR of Atropisomeric Quinazolinones With Enantiopure Phosphoric Acids [PDF]
Frontiers in Chemistry, 2018 A chiral phosphoric acid promoted enantioselective NMR analysis of atropisomeric quinazolinones was described, in which a variety of racemic arylquinazolinones such as afloqualone and IC-87114 were well recognized with up to 0. 21 ppm ΔΔδ value.
Chaofei Wu +5 more
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Phosphoric acid-catalyzed atroposelective construction of axially chiral arylpyrroles [PDF]
Nature Communications, 2019 Axially chiral arylpyrroles are structural motifs often found in natural and medicinal products. Here, the authors report the atroposelective synthesis of axially chiral arylpyrrole derivatives, which proved to be efficient chiral ligands for asymmetric ...
Lei Zhang +5 more
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Chiral phosphoric acid and its applications of asymmetric catalytic hydrogenation [PDF]
E3S Web of Conferences, 2021 As an excellent representative of organic small molecular catalysts, chiral phosphoric acid played an important role in asymmetric catalytic hydrogenation.
Zhuoxin Sun
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Recent applications of chiral phosphoric acids in palladium catalysis [PDF]
Organic & Biomolecular Chemistry, 2020 A variety of catalytic asymmetric reactions have been realized during the past decade through the combined action of palladium and chiral phosphoric acids (CPAs). This review surveys key examples and examines the underlying mechanisms of stereoinduction.
Van T. Tran +3 more
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Chiral Phosphoric Acid Catalyzed Peroxidation of Imines [PDF]
Angewandte Chemie International Edition, 2010 Peroxide-containing compounds are a class of biologically important targets, many of which possess antitumor, anti-bacterial, and antimalarial activities.[1] For example, the peroxide-containing natural product artemisinin (qinghaosu) has been shown to be a highly effective antimalarial drug.[2] The chiral peroxide moiety in this natural product was ...
Wenhua, Zheng +2 more
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Recent advances in the asymmetric phosphoric acid-catalyzed synthesis of axially chiral compounds
Beilstein Journal of Organic Chemistry, 2021 In recent years, the synthesis of axially chiral compounds has received considerable attention due to their extensive application as biologically active compounds in medicinal chemistry and as chiral ligands in asymmetric catalysis.
Alemayehu Gashaw Woldegiorgis +1 more
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Nature Communications, 2022 There is great interest in methods for catalytic enantioselective construction of axially chiral compounds found in natural products. Here, the authors develop a cycloaddition strategy for atroposelective construction of indole-based biaryls via chiral ...
Hui Yang +8 more
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Nature Communications, 2021 Although the hetero-Diels–Alder reaction is a staple of organic chemistry, catalytic asymmetric versions of the inverse-electron demand variant often require specially engineered substrates for the reaction to work. Here the authors cyclize non-activated
Min Jin +10 more
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Stereoselective Synthesis of Axially Chiral Allenes and Styrenes via Chiral Phosphoric Acid Catalysis: An Overview [PDF]
ACS OmegaAlemayehu Gashaw Woldegiorgis +5 more
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Nature Communications, 2020 Strategies for enantioselective α-aminomethylation of carbonyl compounds rely on the chiral activation of stable ketones substrate. Here, the authors report a rhodium/chiral phosphoric acid cooperative catalysis for the three-component reaction of α ...
Jiuwei Che +4 more
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