Results 121 to 130 of about 80,380 (385)

Selective C(sp2)−H Halogenation of "click" 4-Aryl-1,2,3-triazoles [PDF]

open access: yes, 2017
Selective bromination reactions of “click compounds” are described. Electron-neutral and electron-deficient arenes selectively undergo unprecedented Pd-catalyzed C–H ortho-halogenations assisted by simple triazoles as modular directing groups, whereas ...
Correa Navarro, Arkaitz   +2 more
core   +2 more sources

Hierarchically MOF‐Based Porous Monolith Composites for Atmospheric Water Harvesting

open access: yesAdvanced Materials, EarlyView.
This review explores the design of hierarchical porous materials for atmospheric water harvesting, focusing on metal‐organic frameworks (MOFs) and porous monoliths. Emphasis is placed on integrating MOF nanoscale porosity with the microscale channels of monolithic scaffolds to enhance sorption‐desorption performance.
Mahyar Panahi‐Sarmad   +7 more
wiley   +1 more source

One-Pot Synthesis of 2-(Aryl/Alkyl)amino-3-cyanobenzobthiophenes and Their Hetero-Fused Analogues by Pd-Catalyzed Intramolecular Oxidative C�H Functionalization/Arylthiolation [PDF]

open access: yes, 2017
We have developed a high-yielding synthesis for substituted 2-(aryl/alkyl)amino-3-cyanobenzobthiophenes and their hetero-fused analogues by using a palladium-catalyzed intramolecular oxidative Câ H functionalization/arylthiolation reaction of in situ ...
Acharya, A.   +4 more
core   +1 more source

Thermal Processing Creates Water‐Stable PEDOT:PSS Films for Bioelectronics

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Instead of using chemical cross–linkers, it is shown that PEDOT:PSS thin films for bioelectronics become water‐stable after a simple heat treatment. The heat treatment is compatible with a range of rigid and elastomeric substrates and films are stable in vivo for >20 days.
Siddharth Doshi   +16 more
wiley   +1 more source

Control over Structure Formation of Small Molecular Weight Thiophenes in Vacuum Deposited Films

open access: yesAdvanced Materials Interfaces
Recent structural studies of small‐molecular‐weight thiophenes are surveyed, with particular focus on naphthyl‐end‐capped derivatives and comparison to alkyl‐capped and unsubstituted analogues.
Matti Knaapila   +2 more
doaj   +1 more source

Identifying the missing link in catalyst transfer polymerization

open access: yesNature Communications, 2018
The mechanism for nickel-catalyzed catalyst transfer polycondensation of thiophenes to polythiophenes. Here the authors show experimental and computational evidence of structurally characterized square planar η 2-Ni(0)–thiophene species and their ...
Weiying He   +2 more
doaj   +1 more source

Componentes voláteis do café torrado. Parte I: compostos heterocíclicos Volatile components in roasted coffee. Part I: heterocyclic compounds

open access: yesQuímica Nova, 1999
A review of heterocyclic compounds in roasted coffee is presented. The contents, precursors and sensorial properties of furans, pyrroles, oxazoles, thiazoles, thiophenes, pyrazines and pyridines are discussed.
Carlos Alberto Bastos De Maria   +2 more
doaj   +1 more source

Synthesis of Benzo[c]thiophenes by Rhodium(III)-Catalyzed Dehydrogenative Annulation.

open access: yesJournal of Organic Chemistry, 2016
The dehydrogenative annulation of thiophen-2-carboxamides with 2 equiv of alkynes proceeds efficiently in the presence of a rhodium catalyst and a copper oxidant to furnish multiply substituted benzo[c]thiophenes.
Keita Fukuzumi   +5 more
semanticscholar   +1 more source

Robust Full‐Surface Bonding of Substrate and Electrode for Ultra‐Flexible Sensor Integration

open access: yesAdvanced Materials, EarlyView.
A direct hybrid bonding method that enables both gold and parylene bonding without adhesives is developed. This technique achieves full‐surface direct bonding of electrodes and substrates in flexible electronic connections. The method offers high flexibility, stable mechanical durability, and high‐resolution interconnections, accommodating varying ...
Masahito Takakuwa   +9 more
wiley   +1 more source

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