Results 101 to 110 of about 29,362 (316)

Unexpected Reduction of Ethyl 3-Phenylquinoxaline-2- carboxylate 1,4-Di-N-oxide Derivatives by Amines

Molecules, 2008
The unexpected tendency of amines and functionalized hydrazines to reduceethyl 3-phenylquinoxaline-2-carboxylate 1,4-di-N-oxide (1) to afford a quinoxaline 1c andmono-oxide quinoxalines 1a and 1b is described. The experimental conditions werestandardized
Antonio Monge, Ignacio Aldana, Silvia Pérez-Silanes, Beatriz Solano, Esther Vicente, Lidia M. Lima   +5 more
doaj   +1 more source

Preparation and characterization of bis-[1,3,5]triazinyl diazenes and their utilization as flame retardants in polypropylene films [PDF]

, 2014
A series of bis-[1,3,5]triazinyl diazenes and two metal complexes thereof were synthesized and tested as new flame retardants in polypropylene films. It was observed that electron withdrawing triazinyl ring substituents (i.e.
Aelmans, Aubert, Aubert, Aubert, Chantarasiri, Chen, Chigrinov, Chudgar, Dugave, Duliban, Huang, Huynh, Inoue, Inoue, Kandil, Koopman, Laoutid, Larkin, Li, Lin, Loew, Mikhailov, Milman, Morgan, Morgan, Nicolas, Oxley, Pawelec, Petredis, Ribeiro da Silva, Schartel, Singh, Skinner, Starnes, Tirri, Veen, Wilen, Yamanaka, Zhao, Zhong, Zilker   +40 more
core   +1 more source

Strategies for Paired Electrolysis with Enhanced Efficiency

Advanced Energy and Sustainability Research, EarlyView.
This review summarizes the fundamentals, challenges, and strategies for paired electrolysis, with examples in the chlor‐alkali, hydrogen production, CO2 reduction, and ammonia synthesis industries. Future directions include the development of advanced membranes, computational studies, process integration, scale‐up, and techno‐economic analysis.
Yuanyuan Yao, Xin Yang, Yuqi Pan, Leo Lai, Liuyue Cao, Li Wei, Yuan Chen   +6 more
wiley   +1 more source

A convenient four-component one-pot strategy toward the synthesis of pyrazolo[3,4-d]pyrimidines

Beilstein Journal of Organic Chemistry, 2015
An efficient one-pot synthesis of pyrazolo[3,4-d]pyrimidine derivatives by the four-component condensation of hydrazines, methylenemalononitriles, aldehydes and alcohols has been developed via two different reaction pathways.
Mingxing Liu, Jiarong Li, Hongxin Chai, Kai Zhang, Deli Yang, Qi Zhang, Daxin Shi   +6 more
doaj   +1 more source

hydrazines

, 2014
Citation: 'hydrazines' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.H02881 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Pyrone-based inhibitors of metalloproteinase types 2 and 3 may work as conformation-selective inhibitors. [PDF]

, 2011
Matrix metalloproteinases are zinc-containing enzymes capable of degrading all components of the extracellular matrix. Owing to their role in human disease, matrix metalloproteinase have been the subject of extensive study.
de Oliveira, César AF, Durrant, Jacob D, McCammon, J Andrew   +2 more
core   +1 more source

Development of spectrophotometric method of copper (II) ions determination with N-benzyloyl-N'-(phenylsulfonyl)hydrazine

, 2023
Yulia B. Elchishcheva, Maria Sitnikova, П. Т. Павлов   +2 more
openalex   +2 more sources

Palladium-Nickel Electrocatalysts on Nitrogen-Doped Reduced Graphene Oxide Nanosheets for Direct Hydrazine/Hydrogen Peroxide Fuel Cells [PDF]

, 2021
Mir Ghasem Hosseini, Vahid Daneshvari-Esfahlan, Hossein Aghajani, Sigrid Wolf, Viktor Hacker   +4 more
openalex   +1 more source

Alkinyltriazene in photochemischen metallfreien Doyle‐Kirmse‐Umlagerungen

Angewandte Chemie, EarlyView.
Es wird eine metall‐ und additivfreie photokatalytische Doyle‐Kirmse‐Reaktion von Alkinyltriazenen beschrieben, die über Cyancarbenzwischenstufen verläuft. Diese Strategie ermöglicht den effizienten Aufbau hochsubstituierter asymmetrischer Kohlenstoffzentren mit breitem Substratspektrum und liefert synthetisch wertvolle Nitrile.
Ningning Liu, Linus Bjarne Dittmer, Melina Maag, Elena Michel, Frank Rominger, Matthias Rudolph, Andreas Dreuw, A. Stephen K. Hashmi   +7 more
wiley   +1 more source

Microwave-Assisted Synthesis of Tetrahydrocarbazole Linked 1,2-Diazoles in Aqueous-Brønsted Acid Catalytic System

Journal of Chemistry, 2017
A new series of tetrahydrocarbazole coupled 1,2-diazoles 4/5/6(a–o) in moderate to excellent yield was synthesized successfully via multicomponent reaction approach by adopting Michael type-addition of hydrazines on in situ generated α,β-unsaturated ...
Zubi Sadiq, Erum Akbar Hussain, Narjis Naz, Ambreen Ghani, Kausar Yasmeen, Fizzah Iqbal   +5 more
doaj   +1 more source