Results 171 to 180 of about 363,660 (280)

Tuning Pore Geometry of Zirconium Metal–Organic Frameworks via Bent Ligands for Enhanced Sulfide Oxidation Catalysis

Angewandte Chemie, EarlyView.
Engineering pore geometry through ligand conformational bending enhances active‐site accessibility and mass transport in Zr‐MOFs, leading to superior catalytic sulfide oxidation. ABSTRACT Pore engineering represents a powerful strategy to tailor the physicochemical properties of metal–organic frameworks (MOFs), yet the structure‐activity relationship ...
Zhaoyi Liu, Joshua Rushlow, Jiatong Huo, Wenlu Fan, Kui Tan, Shengqian Ma, Rong‐Ran Liang, Hong‐Cai Zhou   +7 more
wiley   +1 more source

Radical, Not Ionic: The Mechanochemical Zincke Nitration of Phenols

Angewandte Chemie, EarlyView.
Mechanochemistry recasts the classical Zincke nitration as an open‐shell process. Liquid‐assisted vibrational milling of phenols with in situ HNO2 delivers direct and ipso nitration across 50 substrates, while atmosphere, NOx‐transfer, EPR and DFT evidence expose a phenoxyl‐radical/NO2 manifold underlying this historically ionic transformation ...
Roberto Scipione, Francesco Basoccu, Pietro Caboni, Francesca Sardu, Enrico Podda, Marco Lucarini, Massimiliano Arca, Andrea Porcheddu   +7 more
wiley   +1 more source

<i>ortho</i>-Substituents govern aryl aldehyde reactivity: toward lysine-targeted, tunable inhibitors of glucose-6-phosphate dehydrogenase. [PDF]

RSC Chem Biol
Rowland BE, Roy KD, Alkaş A, Barsoum M, Kuot T, Fuller JC, Naudet AJ, Ospanow E, Jakeman DL.   +8 more
europepmc   +1 more source

Difluoromethylenation of Alkynes: Streamlined Access to Allyl Difluorides

Angewandte Chemie, EarlyView.
Stabilizing primary oxocarbenium in HF/pyridine unlocks a direct alkyne difluoromethylenation – an efficient route to synthetically‐relevant allyl difluorides in a single step. ABSTRACT A direct difluoromethylenation of alkynes has been developed using HF/pyridine as a dual acidic and fluorinating medium. The reaction proceeds via in situ generation of
Fabien Naullet, Sourav Mondal, Frédéric Guégan, Bastien Michelet, Sébastien Thibaudeau   +4 more
wiley   +1 more source

The Nonadiabatic Nature of the Substituent Effects in Azobenzene. [PDF]

Angew Chem Int Ed Engl
van der Wal JJ, Peshkov RY, Steen JD, Simeth NA, Crespi S.   +4 more
europepmc   +1 more source

NHC‐Copper(I)‐Mediated Functionalization of White Phosphorus

Angewandte Chemie, EarlyView.
White phosphorus is functionalized by N‐heterocyclic carbene supported copper(I) complexes through redox‐neutral steps. Treatment of the resulting complexes with electrophiles releases the ligands from the metal center as asymmetrically substituted organophosphorus butterfly compounds.
Thomas M. Horsley Downie, Sophia A. Vogler, Gábor Balázs, Francesco Cirigliano, Robert Wolf   +4 more
wiley   +1 more source

Dual-Substrate Synergistic Photocatalysis: Exogenous Reagent-Free Co-Removal of Phenol and Cr(VI) via Electron-Donor-Mediated Redox Coupling over Modified Carbon Nitride. [PDF]

Adv Sci (Weinh)
Zhang X, Wang Q, Liu X, Wan S, Du C, Li Q, Yu C, Dong S, Su X, Hu C.   +9 more
europepmc   +1 more source

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

Angewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman, Pablo Leon, Benedikt S. Schreib, KyuJung Jun, Jurgis Ruza, Vanesa Munoz Perales, Yang Shao‐Horn, Rafael Gomez‐Bombarelli, Jeremiah A. Johnson   +8 more
wiley   +1 more source

Aromaticity recovery as a driving force for electron transfer and radical addition in 5-hydroxy-1,4-naphthoquinone derivatives. [PDF]

RSC Adv
My Hao NT, Dieu Ly LT, Thanh PN, Le Huyen T, Vo QV, Ngo ST, Thong NM, Huong DQ, Nam PC.   +8 more
europepmc   +1 more source

Synthesis of Large‐ and Medium‐Sized Heterobiaryl Atropisomeric Rings and Atropopeptides by Catalytic Intramolecular SNAr

Angewandte Chemie, EarlyView.
Catalytic, intramolecular N‐heterocycle arylation by nucleophilic aromatic substitution (SNAr) is now available for synthesis of highly strained macrocycles and medium‐sized heterobiaryl atropisomeric rings, including atropopeptides. Key to the approach is the ability to generate a strong base catalytically, taking advantage of base‐embedding ...
Alireza Abbasi Kejani, Paritosh Dey, Nicholas H. Stillman, Daniel M. Andrade, Michal Šimek, Martin Dračínský, Daniel Bím, Paulo H. S. Paioti   +7 more
wiley   +1 more source