Results 271 to 280 of about 3,272,143 (363)

Enantioselective synthesis of inherently chiral sulfur-containing calix[4]arenes via chiral sulfide catalyzed desymmetrizing aromatic sulfenylation. [PDF]

Nat Commun
Zhang XY, Zhu D, Cao RF, Huo YX, Ding TM, Chen ZM.   +5 more
europepmc   +1 more source

Insights into the Mechanism of a Vanadium Bromoperoxidase from the Marine Macro‐Algae Corallina pilulifera for Biocatalytic Halogenation

ChemCatChem, EarlyView.
A study of crystallographic complexes obtained from vanadium haloperoxidase enzymes can determine key amino acids, leucine, and phenylalanine, that change their structural orientation to allow either chloride or bromide to bind to the enzymes active site, thereby determining halide specificity.
Daniel E. Mitchell, Esther Garcia‐Rodriguez, Michail N. Isupov, Jennifer A. Littlechild   +3 more
wiley   +1 more source

Enantioselective Synthesis of Allylic Sulfones via Rhodium-Catalyzed Direct Hydrosulfonylation of Allenes and Alkynes. [PDF]

J Am Chem Soc
Chang CY, Aponick A.
europepmc   +1 more source

Enantioselective Synthesis of 2- and 3-Benzofuryl b-Amino Alcohols

, 2001
M. Zaidlewicz, Aldona Chechłowska, A. Prewysz‐Kwinto, Andrzej Wojtczak   +3 more
openalex   +1 more source

Development of Multipurpose Supported Asymmetric Salen Catalysts by Cu(0)‐Mediated Reversible Deactivation Radical Copolymerization

ChemCatChem, EarlyView.
The challenge of recycling heterogeneous catalysts and reusing them in different reactions was addressed. To this end, salen complexes were anchored on methacrylate insoluble polymers obtained using the Cu(0)‐mediated RDRP method. Their reactivity and recyclability were analyzed in asymmetric ring opening and dynamic kinetic resolution of epoxides ...
Rafaela Bechara, Mohamed Mellah, Nadine Barroca‐Aubry, François Ozanam, Anne‐Chantal Gouget‐Laemmel, Damien Aureau, Diana Dragoé, Philippe Roger, Emmanuelle Schulz   +8 more
wiley   +1 more source

Catalytic Enantioselective Synthesis of Axially Chiral Diaryl Ethers Via Asymmetric Povarov Reaction Enabled Desymmetrization. [PDF]

Adv Sci (Weinh)
Ye Z, Xie W, Liu W, Zhou C, Yang X.
europepmc   +1 more source

Substrate Adaptability Enabled by Remote Noncovalent Interactions: How Far Are We?

ChemCatChem, EarlyView.
Harnessing attractive noncovalent interactions (NCIs) between substrates and catalysts has emerged as an effective strategy in homogeneous catalysis. The long‐range nature and conformational flexibility of NCIs enable catalysts to adapt to structural changes in substrates, while maintaining remote control over selectivity.
Yuhao Zhu, Ye Zhu
wiley   +1 more source

Enantioselective synthesis of spiro[indoline-3,1'-pyrazolo[1,2-<i>b</i>]phthalazine] derivatives <i>via</i> an organocatalytic three-component cascade reaction. [PDF]

RSC Adv
Song L, Sun Y, An R, Wang L, Jin Y.
europepmc   +1 more source

Asymmetric Organocatalytic Synthesis of Sulfone‐Containing (Dihydro)pyrans via Formal (4+2)‐Cycloadditions of Allenylsulfones or Propargylsulfones and Michael Acceptors

ChemCatChem, Accepted Article.
The activation of electron poor allenes with Lewis base catalysts allows for unique transformations and chiral isochalcogenoureas were recently introduced as powerful catalysts for allenoate‐based (4+2)‐cycloadditions. We herein now report the use of these catalysts for the activation and control of allenylsulfones and propargylsulfones for asymmetric (
Mario Hofer, Markus Himmelsbach, Uwe Monkowius, Mario Waser   +3 more
wiley   +1 more source

Merging Peptide and Enzyme Catalysis in a Single Protein Domain Bearing Two Separated Active Sites

ChemCatChem, EarlyView.
A dual‐functional catalyst that unites peptide catalysis and biocatalysis within a single protein scaffold at two distinct active sites offers a promising strategy for cascade catalysis. This hybrid catalyst enabled here a one‐pot transformation of alcohols to C─C coupled products via enamine activation, revealing challenges such as mismatched reaction
Mathias Pickl, Andrea Raab, Danne Post, Jasper S. Möhler, Stefan Simić, Jörg Feldmann, Helma Wennemers, Wolfgang Kroutil   +7 more
wiley   +1 more source