Results 21 to 30 of about 537 (178)
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable dual‐functional strategy yields simultaneously sulfonated and nanosized cellulose for proton exchange membranes with continuous hydrogen‐bond networks. These sustainable membranes exhibit low‐humidity proton conductivity twofold higher than Nafion 212, providing a robust solution for next‐generation fuel cells.
Nan Li +6 more
wiley +1 more source
AIChE Journal, Volume 72, Issue 7, July 2026.Abstract This study investigates a fault‐tolerant control (FTC) approach for continuous stirred‐tank reactors (CSTR), emphasizing the importance of timely interventions to ensure operational safety under fault conditions. A systematic methodology combining residual‐based fault estimation and Dynamic Safety Margin (DSM) monitoring is developed to guide ...
Pu Du +3 more
wiley +1 more source
, 1968 The picolines (methylpyridines), lutidines (dimethylpyridines), thiophen, and furan have been exchanged with heavy water on a variety of Group VIII transition metals.
GE Calf, JL Garnett
core +1 more source
The velocity of propagation and attenuation of ultrasound in methylpyridines
Archives of Acoustics, 2016 The results of measurements of c and a/f^2 as functions of temperature for five methylpyridines: β- and y-picolines and 2.4, 2.5 and 3.5 lutidines are given.
Bogumił LINDE, Antoni ŚLIWIŃSKI
doaj
Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.We presented herein that propadiene can chemodivergently form either an allylic moiety or a dienylic moiety under Pd catalysis. Embedding this reactivity pattern into photocatalysis with DHP as the initial radical source and styrene derivatives as the initial acceptor leads to multi‐component allylation and dienylation.
Yi‐Fei Yang +2 more
wiley +2 more sources
Intelligent Molecular Recognition in Hydrogen‐Bond‐Mediated Supramolecular Polyhedra
SmartMat, Volume 7, Issue 3, June 2026.This perspective highlights the construction of sophisticated hydrogen‐bonded supramolecular polyhedra from macrocycles by emulating the hierarchical assembly of ferritin and viral capsids, and summarizes their selective recognition of individual guest molecules as well as the synergistic encapsulation of multiple species, demonstrating their potential
Ran‐Qi Chen +3 more
wiley +1 more source
Deprotonative C(sp3)/C(sp2)–H (Multi)Silylation of (Hetero)Arenes Mediated by NaTMP
Angewandte Chemie, Volume 138, Issue 21, 18 May 2026.An operationally simple protocol using a strongly basic sodium amide in combination with sterically emcumbered silicon electrophiles enables the deprotonative C–H (multi)silylation of a myriad of (hetero)arenes. Mechanistic investigations highlight the pivotal role of steric and coordination effects in controlling the regioselectivity and efficiency of
David Sánchez‐Roa +6 more
wiley +1 more source
, 2015 A transition-metal-free, t-BuOOH mediated intramolecular carbonylation of arenes in 2-aryl-3-picolines via oxidative C–H functionalizations of the methyl group has been developed, providing an expedient synthesis of 4-azafluorenones.
Krupal P. Jethava (1470895) +2 more
core +1 more source
Chan–Lam Cross‐Coupling With Alkylboron Reagents: From Transmetallation to Radical Pathways
European Journal of Organic Chemistry, Volume 29, Issue 18, 14 May 2026.Alkylative Chan–Lam coupling overcomes intrinsic transmetallation limitations of alkylboron reagents by engaging radical pathways. Recent advances reveal how radical and radical–polar crossover mechanisms enable mild C(sp3)—heteroatom bond formation. This minireview highlights key mechanistic insights and emerging strategies that transform alkylboron ...
Nicolas G.‐Simonian +3 more
wiley +1 more source
Synthesis of pyridine and picolines over modified silica-alumina and ZSM-5 catalysts
, 1995 In the reaction of acetaldehyde, formaldehyde and ammononia over HZSM-5 (Si/Al-280), PbZSM-5 and WZSM-5 catalysts at 420°C, 0.5 h-1 weight hourly space velocity, the total yields of pyridine and 3-picoline obtained were 58.2, 42.8 and 78.3 wt ...
Subrahmanyam, M. +3 more
core +1 more source