Results 211 to 220 of about 11,719 (304)

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Electrochemically cooperative halogen-cation delivery enables modular electrophilic haloesterification of both activated and unactivated alkenes. [PDF]

Chem Sci
Xu HH, Qian DD, Fan Y, Zhang JJ, Guo CL, Xu HC.   +5 more
europepmc   +1 more source

Photolytic Hydrophosphination: Insights Into Catalyzed and Uncatalyzed Processes

Chemistry – A European Journal, EarlyView.
Catalyst‐free photolytic hydrophosphination is demonstrated for vinyl arenes and activated alkenes in polar protic (alcohol) solvents. These reactions appear to be closed‐shell, affirming that even ambient light can impact a reaction—a potentially broad influence on even mundane reactions.
Emma J. Finfer, Evelyn M. Kempf, Rory Waterman   +2 more
wiley   +1 more source

Structure-reactivity based control of radical-mediated degradation in thiol-Michael hydrogels.

J Mater Chem B
Kirkpatrick BE, Rubio MT, Yendamuri T, Elmer NV, Benoit DSW, Guymon CA, Anseth KS, Hebner TS.   +7 more
europepmc   +1 more source

Regio- and Enantioconvergent Hydroallylation of Acrylates Enabled by γ-Silyl-Substituted Allyl Acetates. [PDF]

Angew Chem Int Ed Engl
Suzuki H, Nishikawa R, Sato Y, Sekino K, Matsuda T.   +4 more
europepmc   +1 more source

Breaking the Mold: Electrophilic Hydrophosphanation Emerges

Chemistry – A European Journal, EarlyView.
Electrophilic hydride attack on the olefin, instead of the classical nucleophilic addition by a phosphanido ligand, is unveiled in rhodium‐catalyzed olefin hydrophosphanation. This hydride‐driven pathway operates for both activated and inactivated olefins, with transition states characterized by elongated Rh─H bonds and nascent C─H bond formation ...
Víctor Varela‐Izquierdo, Janeth Navarro, Judit Cano‐Asensio, José A. López, Cristina Tejel   +4 more
wiley   +1 more source

The Italian Trend of Contact Allergy to 2-Hydroxyethyl Methacrylate: Is the Current European Legislation Working? [PDF]

Contact Dermatitis
Caroppo ES, Casciola G, Hansel K, Guglielmo A, Ferrucci SM, Guarneri F, Lauriola MM, Napolitano M, Patruno C, Romita P, Schena D, Trave I, Bianchi L, Stingeni L, 2‐HEMA Study Group.   +14 more
europepmc   +1 more source

N‐Aryl Acridone Derivatives as Effective Catalysts for Energy Transfer Reactions

Chemistry – A European Journal, EarlyView.
Acridones derivatives have high triplet energy, are simple accessible, and could be used in challenging [2+2] ENT reactions. ABSTRACT Organic photocatalysts capable of promoting high‐energy triplet energy transfer (EnT) remain limited, particularly for demanding [2+2] photocycloaddition reactions.
Francesco Calogero, Gaetano D'Onghia, Federica Fina, Zakaria Ziani, Luca Sensoli, Andrea Gualandi, Andrea Fermi, Paola Ceroni, Pier Giorgio Cozzi   +8 more
wiley   +1 more source

Exploring Acrylic Acid as an Oxirane Nucleophile: Direct Access to Poly(β-Hydroxy Acrylates). [PDF]

ChemSusChem
Montanari C, Marcos Celada L, Zhang W, Olsén P.   +3 more
europepmc   +1 more source

Precision Chemistry for Protein Lysine Modification

Chemistry – A European Journal, EarlyView.
Selective modification of lysine residues is challenging due to their similar intrinsic reactivity. Inspired by enzymatic recognition, ligand‐guided electrophiles enable site‐selective labeling and functionalization, while ligand‐guided catalyses achieve regioselective installation of bio‐relevant post‐translational modifications.
Mayu Onoda, Motomu Kanai
wiley   +1 more source