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Academic Journal

Improvement of Asymmetric Reactions via Remote Electronic Tuning of N‐Heterocyclic Carbene Catalysts.

Subjects: *ORGANOCATALYSIS; *UMPOLUNG; *CATALYSTS

  • Source: ChemCatChem. Nov2024, Vol. 16 Issue 22, p1-18. 18p.

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Academic Journal

Radical Umpolung: Efficient Options for the Synthesis of 1,4‐Dicarbonyl Compounds.

Subjects: *UMPOLUNG; *SECONDARY amines; *ORGANIC chemistry

  • Source: Angewandte Chemie International Edition. 5/13/2019, Vol. 58 Issue 20, p6488-6490. 3p.

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Academic Journal

NHC Catalysis for Umpolung Pyridinium Alkylation via Deoxy‐Breslow Intermediates.

Subjects: UMPOLUNG; CATALYSIS; IONS

  • Source: Angewandte Chemie; 4/4/2022, Vol. 134 Issue 15, p1-5, 5p

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Academic Journal

Formal Umpolung Addition of Phosphites to 2‐Azaaryl Ketones under Chiral Brønsted Base Catalysis: Enantioselective Protonation Utilizing [1,2]‐Phospha‐Brook Rearrangement.

Subjects: ENANTIOSELECTIVE catalysis; PROTON transfer reactions; UMPOLUNG

  • Source: Chemistry - A European Journal; 7/26/2022, Vol. 28 Issue 42, p1-6, 6p

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Academic Journal

Regio- and enantioselective umpolung gem-difluoroallylation of hydrazones via palladium catalysis enabled by N-heterocyclic carbene ligand.

Subjects: CATALYSIS; ORGANOCATALYSIS; UMPOLUNG

  • Source: Nature Communications; 11/12/2021, Vol. 12 Issue 1, p1-9, 9p

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Academic Journal

Enantioselective α‐Etherification of Branched Aldehydes via an Oxidative Umpolung Strategy.

Subjects: UMPOLUNG; ALDEHYDES; CARBONYL compounds

  • Source: Angewandte Chemie; 8/16/2021, Vol. 133 Issue 34, p18876-18881, 6p

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Academic Journal

N-Heterocyclic-Carbene-Catalyzed Umpolung of Imines.

Subjects: HETEROCYCLIC compounds; CARBENES; UMPOLUNG

  • Source: Angewandte Chemie International Edition; Mar2017, Vol. 56 Issue 10, p2730-2734, 5p

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Academic Journal

Umpolung Strategy for α‐Functionalization of Aldehydes for the Addition of Thiols and other Nucleophiles.

Subjects: NUCLEOPHILES; UMPOLUNG; NUCLEOPHILIC substitution reactions

  • Source: Angewandte Chemie International Edition; 12/2/2019, Vol. 58 Issue 49, p17856-17862, 7p

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Academic Journal

A Catalytic Strategy for α,ω‐Functionalization: NHC‐Mediated Fragmentation/Umpolung Cascades to Access Hydroxytrifluoromethyl Ynones and Allenones.

Subjects: ORGANOCATALYSIS; CARBENES; FRAGMENTATION reactions

  • Source: ChemCatChem; 8/21/2019, Vol. 11 Issue 16, p3750-3755, 6p

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Academic Journal

Oxidative N‐Heterocyclic Carbene Catalysis.

Subjects: *CATALYSIS; *UMPOLUNG; *OXIDIZING agents

  • Source: Chemistry - A European Journal. 1/18/2023, Vol. 29 Issue 4, p1-51. 51p.

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  • 1-10 of  427 results for ""UMPOLUNG""