Results 51 to 60 of about 93,015 (287)

A green multicomponent approach for the synthesis of 4-quinoline carboxylic acid via modified Doebner hydrogen transfer reaction

Green Chemistry Letters and Reviews
A modified, eco-friendly, and efficient one-pot multicomponent Doebner hydrogen transfer strategy has been developed to produce 4-quinoline carboxylic acid.
Sachin Krishna Meghe, Vijayaparthasarathi Vijayakumar   +1 more
doaj   +1 more source

Multicomponent reactions in nucleoside chemistry [PDF]

Beilstein Journal of Organic Chemistry, 2014
This review covers sixty original publications dealing with the application of multicomponent reactions (MCRs) in the synthesis of novel nucleoside analogs. The reported approaches were employed for modifications of the parent nucleoside core or for de novo construction of a nucleoside scaffold from non-nucleoside substrates.
Mariola Koszytkowska-Stawińska, Włodzimierz Buchowicz   +1 more
openaire   +3 more sources

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

A One-Pot Synthesis of Oxazepine-Quinazolinone bis-Heterocyclic Scaffolds via Isocyanide-Based Three-Component Reactions

Frontiers in Chemistry, 2019
A novel, efficient and environmentally friendly approach has been developed for the synthesis of biologically important bis-heterocyclic oxazepine-quinazolinone derivatives.
Shabnam Shaabani, Ahmad Shaabani, Monika Kucerakova, Michal Dusek   +3 more
doaj   +1 more source

Gasification of coal-derived chars in synthesis gas mixtures under intraparticle mass-transfer-controlled conditions [PDF]

, 1986
A model has been formulated to describe the quasi-steady-state gasification of coal-derived chars in gas mixtures where both the reactants carbon dioxide and steam, and the gasification products carbon monoxide and hydrogen are present.
Bliek, A., Lont, J.C., Swaaij, W.P.M. van   +2 more
core   +2 more sources

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Switchable pathways of multicomponent heterocyclizations of 5-amino-1,2,4-triazoles with salicylaldehydes and pyruvic acid

Beilstein Journal of Organic Chemistry
Switchable multicomponent reactions involving 3-substituted-5-amino-1,2,4-triazoles, pyruvic acid, and salicylaldehydes were studied under different conditions.
Yana I. Sakhno, Oleksander V. Buravov, Kostyantyn Yu. Yurkov, Anastasia Yu. Andryushchenko, Svitlana V. Shishkina, Valentyn A. Chebanov   +5 more
doaj   +1 more source

Rotas de síntese e a homogeneidade dos precursores de mulita e cordierita Routes of synthesis and the homogeneity of mullite and cordierite precursors

Química Nova, 1998
Multicomponent ceramics are mainly synthesized by conventional solid-state reaction route and sol-gel routes. In the sol-gel route, colloidal or polymeric gel are envolved.
Patrícia Tavares de Lima, Celso Aparecido Bertran, Gilmar Patrocínio Thim   +2 more
doaj   +1 more source

On the Maxwell-Stefan approach to multicomponent diffusion

, 2010
We consider the system of Maxwell-Stefan equations which describe multicomponent diffusive fluxes in non-dilute solutions or gas mixtures. We apply the Perron-Frobenius theorem to the irreducible and quasi-positive matrix which governs the flux-force ...
C Muckenfuss, D Bothe, D Bothe, D Serre, GL Standart, H Amann, H Amann, H Amann, J Prüss, J Stefan, JB Duncan, JC Maxwell, JL Vazquez, JO Hirschfelder, KR Rajagopal, P.J.A.M. Kerkhof, R Krishna, R Taylor, RA Horn, RB Bird, V Giovangigli   +20 more
core   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source