Results 41 to 50 of about 23,538 (226)

A Facile Synthesis of Bioactive Five- and Six-membered N-heterocyclic Aromatic Compounds Using AlCoFe2O4 as a Green Catalyst

Acta Chimica Slovenica, 2022
Nitrogen-containing heterocycles have been extensively studied due to their broad biological and pharmaceutical applications. In this study, we synthesized five- and six-membered nitrogen-containing rings through one-pot multicomponent reaction using an ...
Fatemeh Mostaghni, Homa Shafiekhani, Nosrat Madadi Mahani   +2 more
doaj   +1 more source

Integrated Visible Light and Oxidant Protection Through Multifunctional Sunscreens

Advanced Healthcare Materials, EarlyView.
High‐energy visible radiation (HEVR), although less energetic than UV light, penetrates deeper into the skin and contributes to photoaging, pigmentation disorders, and oxidative stress. The development of new HEVR‐targeted filters, therefore, represents not only a scientific challenge but also a pressing public health and cosmetic industry need.
Beatriz Peñín, Raúl Losantos, Ignacio Funes‐Ardoiz, Diego Sampedro   +3 more
wiley   +1 more source

Step‐Edge Functionalization by N‐Heterocyclic Carbenes Enhances Catalytic Activity in Electrochemical CO2 Reduction

Advanced Materials, EarlyView.
Atomically precise functionalization by N‐heterocyclic carbenes enhances the catalytic efficiency of macroscopically defined step edges toward electrochemical CO2${\rm CO}_2$ reduction. Sub‐molecular imaging reveals conformational differences between specific NHCs, which can be correlated with their catalytic performance. Photoelectron spectroscopy and
Philipp Wiesener, Ankita Das, Elena Kolodzeiski, Duong Tran, Ying Pan, Harald Fuchs, Nieves López‐Salas, Saeed Amirjalayer, Frank Glorius, Harry Mönig   +9 more
wiley   +1 more source

Towards the Synthesis of Nitrogen Containing Heterocycles

, 2022
The research undertaken in this thesis aimed at the synthesis of nitrogen containing heterocycles which are a class of molecules highly sought after by chemical industry and academia.
Liam Michael Joyce (20165961)
core  

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

An In–Depth exploration of pyrazole, imidazole, and triazole derivatives, showcasing their unparalleled effectiveness as dynamic organic corrosion inhibitors in aqueous environments

Results in Surfaces and Interfaces
Organic compounds containing heteroatoms have been recognized for their significant ability to mitigate corrosion through adsorption facilitated by lone pair and π–electron interactions with metallic surfaces.
Tlabo Caiphus Leboho, Kgaugelo Selowa, Reginald Khomotso Mothapo, Thabo Pesha, Bryan Phuti Moloto   +4 more
doaj   +1 more source

Shaping Carbon Nitrides for Advanced Macrostructures

Advanced Materials Technologies, EarlyView.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

Recent Advances in Synthesis of Nitrogen-Containing Heterocyclic Compounds Catalyzed by Schiff–Base Complexes

Journal of Chemistry
In recent years, there has been a significant surge in the catalytic utilization of Schiff–base complexes. These compounds prove to be highly effective as homogeneous catalysts in organic syntheses.
Mehdi Fallah-Mehrjardi, Soheil Sayyahi
doaj   +1 more source

Natural Products Inspired Scaffold Diversification Leads to Unnatural Molecular Warhead and Covalent Strategy to Modulating Protein Function through Electrophilic Bromine Transfer

Advanced Science, EarlyView.
We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel, Sofia Kokkaliari, Qiwen Gao, Jinjing Chen, Larissa Costa de Almeida, Srinivasarao Tenneti, Derek A. Leas, Eli Levit, Lewis S. Alexander, Khalil A. Abboud, Pingrong Wei, Michael D. Cameron, James R. Rocca, Ranjala Ratnayake, Donna D. Zhang, Hendrik Luesch, Robert W. Huigens III   +16 more
wiley   +1 more source

Synthesis of nitrogen containing heterocycles

, 2015
This thesis is concerned with the development of synthetic methodology for the synthesis of nitrogen containing heterocycles, specifically 2,5-disubstituted pyrrolidines, 2,6-disubstituted piperidines and 3,5-disubstituted indolizidines.
White, Alexander, Alexander White
core   +1 more source