Results 41 to 50 of about 4,644,920 (368)

A Novel Multi-Component Reaction to Imidazo[4,5-g]-quinazolines

Molecules, 2013
The trace impurities discovered after extended storage of a 5-amino- benzimidazole library were determined as imidazo[4,5-g]quinazoline derivatives by extensive spectroscopic data analysis. The formation of this highly aromatic heterocyclic ring involved
Qianqian Zhang, Li Li, Bo Liu, Gang Liu
doaj   +1 more source

Quasichemical Models of Multicomponent Nonlinear Diffusion

, 2011
Diffusion preserves the positivity of concentrations, therefore, multicomponent diffusion should be nonlinear if there exist non-diagonal terms. The vast variety of nonlinear multicomponent diffusion equations should be ordered and special tools are ...
A.N. Gorban, Barenblatt, Barenblatt, Bertini, Blesgen, Boudart, Briggs, Brownlee, Bykov, Bykov, Cahn, Cahn, Cahn, Cercignani, Chorin, Clausius, Dushman, Einstein, Elliott, Elliott, Eyring, Feinberg, Feinberg, Feynman, Fick, Frank, Fratzl, Frenkel, Frenkel, Gillespie, Gillespie, Gorban, Gorban, Gorban, Gorban, Gorban, Gorban, Gorban, Graham, Grmela, Gurney, Gurtin, H.A. Wahab, H.P. Sargsyan, Horn, Karlin, Kincaid, Kirkendall, Langer, Lyon, Mahan, Maier-Paape, McLaughlin, Mehrer, Michaelis, Nakajima, Narasimhan, Onsager, Onsager, Philibert, Rothman, Schelling, Stueckelberg, Succi, Teorell, Teorell, Tuijn, Van Kampen, Volterra, Watanabe, Wegscheider, Wynne-Jones, Öttinger, Öttinger   +73 more
core   +2 more sources

Revealing the solid-state reaction process among multiphase multicomponent ceramic during ablation

Advanced Powder Materials
Multiphase design is a promising approach to achieve superior ablation resistance of multicomponent ultra-high temperature ceramic, while understanding the ablation mechanism is the foundation.
Ziming Ye, Yi Zeng, Xiang Xiong, Sen Gao, Chen Shen, Shiyan Chen, Tianxing Jiang, Ge Yang   +7 more
doaj   +1 more source

Multicomponent reaction-diffusion processes on complex networks

, 2006
We study the reaction-diffusion process $A + B \to \emptyset$ on uncorrelated scale-free networks analytically. By a mean-field ansatz we derive analytical expressions for the particle pair-correlations and the particle density.
J. D. Noh, M. Boguñá, M. Molloy, Markus Porto, N. V. Kampen, R. Pastor-Satorras, S. Dorogovtsev, Sebastian Weber   +7 more
core   +1 more source

Synthesis of structurally diverse 3,4-dihydropyrimidin-2(1H)-ones via sequential Biginelli and Passerini reactions

Beilstein Journal of Organic Chemistry, 2017
The Biginelli reaction was combined with the Passerini reaction for the first time in a sequential multicomponent tandem reaction approach. After evaluation of all possible linker components and a suitable solvent system, highly functionalized ...
Andreas C. Boukis, Baptiste Monney, Michael A. R. Meier   +2 more
doaj   +1 more source

Efficient Multicomponent Synthesis of Diverse Antibacterial Embelin-Privileged Structure Conjugates

Molecules, 2020
A library of embelin derivatives has been synthesized through a multicomponent reaction from embelin (1), aldehydes and privileged structures such as 4-hydroxycoumarin, 4-hydroxy-2H-pyran-2-one and 2-naphthol, in the presence of InCl3 as catalyst.
Pedro Martín-Acosta, Rosalyn Peña, Gabriela Feresin, Alejandro Tapia, Isabel Lorenzo-Castrillejo, Félix Machín, Ángel Amesty, Ana Estévez-Braun   +7 more
doaj   +1 more source

Preliminary Design of Reactive Distillation Columns [PDF]

, 2005
A procedure that combines feasibility analysis, synthesis and design of reactive distillation columns is introduced. The main interest of this methodology lies on a progressive introduction of the process complexity.
Agreda, Barbosa, Barbosa, Barbosa, Barbosa, Bessling, Buzad, Ciric, Colombo, Doherty, Espinosa, Frey, Giessler, Giessler, Giessler, Giessler, Glasser, Gumus, Harmsen, Hauan, Huss, Kenig, King, Lee, Lee, M. Meyer, Mahajani, Melles, Meyer, Okasinski, R. Thery, Shoemaker, Song, Stankiewicz, Stein, Stichlmair, Sundmacher, Tuchlenski, Ung, Ung, Widagdo, X. Joulia, X.M. Meyer   +42 more
core   +2 more sources

Palladium-Catalyzed Multicomponent Reaction of Alkynes, Carboxylic Acids, and Isocyanides: A Direct Approach to Captodative Olefins.

Organic Letters, 2019
A palladium-catalyzed multicomponent reaction of alkynes, carboxylic acids, and isocyanides has been developed with the assistance of silver salt under mild conditions. Highly functionalized captodative olefins are synthesized efficiently by this method,
Mingchun Gao, M. Zou, Jue Wang, Q. Tan, Bingxin Liu, Bin Xu   +5 more
semanticscholar   +1 more source

Pore-scale simulation of multicomponent multiphase reactive transport with dissolution and precipitation

, 2014
Multicomponent multiphase reactive transport processes with dissolution-precipitation are widely encountered in energy and environment systems. A pore-scale two-phase multi-mixture model based on the lattice Boltzmann method (LBM) is developed for such ...
Chen, Li, He, Ya-Ling, Kang, Qinjun, Robinson, Bruce A., Tang, Qing, Tao, Wen-Quan   +5 more
core   +1 more source

Isocyanides: Promising Functionalities in Bioorthogonal Labeling of Biomolecules

Frontiers in Chemistry, 2021
Isocyanides have drawn increasing attention in biological applications due to their attractive properties and unique reactivities, which can undergo various reactions, such as multicomponent reactions, α-addition reactions, [4 + 1] cycloaddition ...
Yuchen Zhu, Jia-Yu Liao, Jia-Yu Liao, Linghui Qian, Linghui Qian, Linghui Qian, Linghui Qian   +6 more
doaj   +1 more source