Search Results - "Yang, Jung Woon"
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Expanding the Scope of the Organocatalytic Addition of Fluorobis(phenylsulfonyl)methane to Enals: Enantioselective Cascade Synthesis of Fluoroindane and Fluorochromanol Derivatives
Published in Advanced synthesis & catalysis (10-02-2014)“…Highly enantioselective cascade reactions for the synthesis of fluoroindanes and chromanols derivatives are described. The cascade reactions consisted of…”
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2
Proline-Catalyzed Mannich Reaction of Aldehydes with N-Boc-Imines
Published in Angewandte Chemie International Edition (01-01-2007)“…A curious cat.: The proline‐catalyzed Mannich reaction between aldehydes and N‐Boc‐imines (Boc=tert‐butoxycarbonyl) gives crystalline β‐amino aldehydes with…”
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3
Proline-catalysed Mannich reactions of acetaldehyde
Published in Nature (London) (27-03-2008)“…More Mannich reactions Traditionally, catalysts for organic chemical reactions have been either enzymes or metal complexes. But small organic molecules, known…”
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4
Copper‐Catalyzed Asymmetric Synthesis of Borylated cis‐Disubstituted Indolines
Published in Chemistry, an Asian journal (04-09-2018)“…A copper‐catalyzed, intramolecular borylative cyclization of vinyl arenes with imines is reported, which affords enantio‐enriched indolines as a single…”
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5
Organophotocatalytic Synthesis of Phosphoramidates
Published in Advanced synthesis & catalysis (03-03-2016)“…We describe the use of visible light in conjunction with an organic dye for the synthesis of phosphoramidates. Cross dehydrogenative coupling reactions between…”
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6
Impact of Carboxyl Groups in Graphene Oxide on Chemoselective Alcohol Oxidation with Ultra-Low Carbocatalyst Loading
Published in Scientific reports (09-06-2017)“…A highly efficient and simple chemoselective aerobic oxidation of primary alcohols to either aldehydes or carboxylic acids in the presence of nitric acid was…”
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7
Hydrotrifluoromethylation and iodotrifluoromethylation of alkenes and alkynes using an inorganic electride as a radical generator
Published in Nature communications (12-09-2014)“…The trifluoromethyl (CF 3 ) group is a staple synthon that can alter the physical and chemical properties of organic molecules. Despite recent advances in…”
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8
Synergistic Catalysis: Highly Enantioselective Cascade Reaction for the Synthesis of Dihydroacridines
Published in Chemistry : a European journal (07-06-2019)“…The first stereoselective synthesis of dihydroacridines through synergistic catalysis, achieving the final target compounds with good to excellent yields and…”
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9
Catalytic Asymmetric Reductive Michael Cyclization
Published in Journal of the American Chemical Society (02-11-2005)“…A highly efficient and chemo-, regio-, diastereo-, and enantioselective organocatalytic tandem conjugate reduction−Michael cyclization of enal enones has been…”
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10
Metal-Free, Organocatalytic Asymmetric Transfer Hydrogenation of α,β-Unsaturated Aldehydes
Published in Angewandte Chemie International Edition (17-12-2004)“…Selective reduction without metals: An imidazolidinone salt effectively catalyzes the highly enantioselective biomimetic transfer hydrogenation of…”
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11
Redox chemistry of nitrogen-doped CNT-encapsulated nitroxide radical polymers for high energy density and rate-capability organic batteries
Published in Chemical engineering journal (Lausanne, Switzerland : 1996) (01-06-2021)“…[Display omitted] •Nitroxide radical polymer filled nitrogen-doped CNTs (NCNTs) organic electrode is prepared.•The nitroxide radical-based organic electrode…”
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12
Preparation of Chiral Contiguous Epoxyaziridines and Their Regioselective Ring‐Opening for Drug Syntheses
Published in Chemistry : a European journal (16-02-2018)“…Synthetically valuable chiral (aziridin‐2‐yl)oxirane‐3‐carbaldehydes bearing three consecutive functional groups including aziridine, epoxide, and aldehyde…”
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13
Metal-Free Chemoselective Oxidative Dehomologation or Direct Oxidation of Alcohols: Implication for Biomass Conversion
Published in ChemSusChem (08-02-2016)“…A transition metal‐free, chemoselective reaction was performed using the sodium tert‐butoxide–oxygen (NaOtBu–O2) system, resulting in either oxidative…”
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14
Switching Regioselectivity in Crossed Acyloin Condensations between Aromatic Aldehydes and Acetaldehyde by Altering N-Heterocyclic Carbene Catalysts
Published in Organic letters (04-03-2011)“…An unprecedented high level of regioselectivities (up to 96%) in the intermolecular crossed acyloin condensations of various aromatic aldehydes with…”
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15
Chemoselective Hydrodehalogenation of Organic Halides Utilizing Two-Dimensional Anionic Electrons of Inorganic Electride [Ca2N]+·e
Published in Langmuir (31-01-2017)“…Halogenated organic compounds are important anthropogenic chemicals widely used in chemical industry, biology, and pharmacology; however, the persistence and…”
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Silica gel-supported bis-cinchona alkaloid: a chiral catalyst for the heterogeneous asymmetric desymmetrization of meso-cyclic anhydrides
Published in Tetrahedron letters (12-04-2004)“…Graphic A one-pot conversion of meso-cyclic anhydrides with alcoholysis in diethyl ether using SGS-(DHQ) 2AQN 4 , a silica gel-supported chiral catalyst, into…”
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17
Two dimensional inorganic electride-promoted electron transfer efficiency in transfer hydrogenation of alkynes and alkenes
Published in Chemical science (Cambridge) (01-01-2015)“…A simple and highly efficient transfer hydrogenation of alkynes and alkenes by using a two-dimensional electride, dicalcium nitride ([Ca N] ·e ), as an…”
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18
Acetaldehyde: A Small Organic Molecule with Big Impact on Organocatalytic Reactions
Published in Chemistry : a European journal (12-02-2016)“…Stereocontrolled formation of carbon−carbon and carbon−heteroatom bonds through asymmetric organocatalysis is a formidable challenge for modern synthetic…”
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19
Mixed Monosilyl Acetals and Catalyst‐Dependent Chemoselective Mukaiyama Aldol Reactions
Published in Chemistry : a European journal (21-11-2017)“…We report a direct, simple, and straightforward approach for the construction of a mixed monosilyl acetal as a new and synthetically valuable functional group…”
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20
Chemoselective reduction and oxidation of ketones in water through control of the electron transfer pathway
Published in Scientific reports (28-05-2015)“…The selective synthesis of different products from the same starting materials in water, which is the most abundant solvent in nature, is a crucial issue as it…”
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