Results 121 to 130 of about 10,956 (235)

Phenol‐Rich Carbon Dots as Metal‐Free Nano‐Photocatalysts for [3 + 2] Cycloaddition Reactions

ChemSusChem, EarlyView.
Phenol‐rich carbon dots can be effectively used, in combination with a proper base and the Schreiner thiourea (A), as nano‐photocatalysts to drive synthetically relevant [3 + 2] cycloaddition reactions between cyclopropyl ketones 1 and unsaturated hydrocarbons 2. Carbon dots (CDs) are unique carbon‐based nanoparticles with potential applications in the
Martina Mamone, Giuseppe Gentile, Maurizio Prato, Giacomo Filippini   +3 more
wiley   +1 more source

Organocatalytic clean synthesis of densely functionalized 4H-pyrans by bifunctional tetraethylammonium 2-(carbamoyl)benzoate using ball milling technique under mild conditions

Green Chemistry Letters and Reviews, 2016
A green and simple method has been developed for efficient preparation of diverse annulated 2-amino-3-cyano-4H-pyran derivatives in the presence of a low loading of tetraethylammonium 2-(carbamoyl)benzoate (TEACB), as a bifunctional organocatalyst, under
Mohammad G. Dekamin, Mohammad Alikhani, Shahrzad Javanshir   +2 more
doaj   +1 more source

1,3-Dicarbonyl compounds in stereoselective domino and multicomponent reactions

, 2010
International audienceModern organic synthesis focuses on the discovery and the development of stereoselective multiple bond-forming transformations allowing the creation of several covalent bonds in a single operation.
Bonne, Damien, Constantieux, Thierry, Coquerel, Yoann, Rodriguez, Jean   +3 more
core   +3 more sources

Combining photocatalytic oxidation of β‐chlorohydrins with carbonyl bioreduction in a deracemization approach

ChemSusChem, Accepted Article.
Enantiopure β‐chlorohydrins are valuable intermediates in organic synthesis, acting as chiral building blocks for obtaining biologically active compounds. This work presents a one‐pot two‐step linear sequence for the efficient deracemization of β‐chlorohydrins by combining a photocatalytic alcohol oxidation with a stereoselective carbonyl bioreduction ...
Sara Filgueira, Laura Rodríguez-Fernández, Iván Lavandera, Vicente Gotor-Fernández   +3 more
wiley   +1 more source

Controlled Catalysis Delivering High Molecular Weight Polyesters as Recyclable Alternatives to Polystyrenes

Angewandte Chemie, Volume 137, Issue 23, June 2, 2025.
This work exemplifies how to make high molar mass ring opening copolymerization (ROCOP) polyesters as engineering plastics, informing upon their thermal and mechanical properties. Leading polyesters, prepared by epoxide/anhydride ROCOP, show high glass transition temperatures and tensile and flexural strengths, matching or exceeding polystyrene ...
Nora Jannsen, Kam C. Poon, Alexander Craze, Chang Gao, Charlotte K. Williams   +4 more
wiley   +2 more sources

Solid‐State Structures of Three Zinc(II) Coordination Polymers with 3‐(1H‐Imidazol‐1‐yl)propanoate Linkers Prepared in Water

European Journal of Inorganic Chemistry, EarlyView.
This study investigates the water solution‐derived structure of three zinc(II) based coordination polymers with 3‐(1H‐imidazol‐1‐yl)propanoate ligands by single crystal and powder X‐ray diffraction, infrared spectroscopy supported by theoretical calculations, and thermogravimetry.
Katharina Kodolitsch, Ana Torvisco, Tomas Kamencek, Matjaž Mazaj, Egbert Zojer, Christian Slugovc   +5 more
wiley   +1 more source

Quinone-catalyzed oxidative deformylation: synthesis of imines from amino alcohols

Beilstein Journal of Organic Chemistry, 2017
A new method for imine synthesis by way of quinone-catalyzed oxidative deformylation of 1,2-amino alcohols is reported. A wide range of readily accessible amino alcohols and primary amines can be reacted to provide N-protected imine products.
Xinyun Liu, Johnny H. Phan, Benjamin J. Haugeberg, Shrikant S. Londhe, Michael D. Clift   +4 more
doaj   +1 more source

Proposal : Organokatalysatoren für die fluorige biphasische Katalyse ; Möglichkeiten der homogenen Katalyse mit anschließendem Katalysator‐Recycling [PDF]

, 2006
Übertragung des Konzeptes der fluorigen biphasischen Systeme bzw. Übergangsmetallkatalyse auf die fluorige biphasische Organokatalyse. Entwicklung neuer Organokatalysatoren für dieses neuartige Katalysekonzept auf der Basis bereits bekannter Taddol ...
Koenigs, Rene M.
core  

The Dihydroindeno[2,1‐c]fluorene Core: from Syntheses to Properties and Potential Applications

European Journal of Organic Chemistry, Accepted Article.
In the last decade, substances possessing the dihydroindeno[2,1‐c]fluorene scaffold showed interesting photo‐physical properties and other potential applications in electronics. The afore‐mentioned compounds belong to the family of five regioisomeric dihydroindenofluorenes, but unlike other ones, they possess angular or, in the case of higher congeners,
Timothée Cadart, Martin Kotora
wiley   +1 more source

Neutral sp2–sp3 Diboranes: Structures, Reactivities, and Applications in Organic Synthesis

European Journal of Organic Chemistry, EarlyView.
Neutral sp2–sp3 diboranes, featuring a polarized BB single bond between distinct sp2‐ and sp3‐hybridized boryl groups, possess unique structures and reactivity. Their properties have attracted significant research interest. This review explores the chemistry of neutral sp2–sp3 diboranes, highlighting recent progress in their syntheses, structural ...
Zhiqing Liu, Hairong Lyu
wiley   +1 more source