Results 11 to 20 of about 26,334 (117)

Catalyzed and non-catalyzed synthesis of bioactive monastrol

Química Nova, 2014
The bioactive 3,4-dihydropyrimidin-2(1H)-thione derivative known as Monastrol was synthesized under catalyzed and non-catalyzed conditions through the Biginelli multicomponent reaction under solvent-free conditions.
Haline G. O. Alvim, Jose R. Correa, Taynara R. Machado, Wender A. Silva, Brenno A. D. Neto   +4 more
doaj   +1 more source

Atom- and step-economic synthesis of biaryl-substituted furocoumarins, furoquinolones and furopyrimidines by multicomponent reactions and one-pot synthesis

Green Processing and Synthesis, 2013
Atom-efficient multicomponent reactions (MCR) and step-efficient one-pot synthesis are developed for the synthesis of biaryl-substituted furocoumarins, furoquinolones, and furopyrimidines.
Kadam Asha, Bellinger Stephanie, Zhang Wei   +2 more
doaj   +1 more source

Ethyl 5-methyl-7-(4-morpholinophenyl)-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylate

Molbank, 2018
A new compound belonging to a dihydrotetrazolopyrimidine derivative, that is, ethyl 5-methyl-7-(4-morpholinophenyl)-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylate, was successfully synthesized using a Biginelli reaction between 4 ...
Hery Suwito, Noorma Kurnyawaty, Kautsar Ul Haq, Abdulloh Abdulloh, Indriani Indriani   +4 more
doaj   +1 more source

Stereoselective domino assembling of five molecules: one-pot approach to $(2^\primeR^*,3S^*,4^\primeR^*)$-$2^\prime,4^\prime$-diaryl-$1^\prime,4^\prime$-dihydro-$2^\primeH $-spiro[indoline-$3,3^\prime$-pyridines]

Comptes Rendus. Chimie, 2020
A new stereoselective multicomponent reaction has been found: domino assembling of two equivalents of benzaldehyde, malononitrile, oxindole and excess of ammonium acetate in acetonitrile resulted in the formation of previously unknown $(2^\primeR^*,3S ...
Ryzhkov, Fedor V., Elinson, Michail N., Ryzhkova, Yuliya E., Vereshchagin, Anatoly N., Goloveshkin, Alexander S., Egorov, Mikhail P.   +5 more
doaj   +1 more source

Efficient Synthesis of Boron-Containing α-Acyloxyamide Analogs via Microwave Irradiation

Molecules, 2013
In this report, a Passerini three-component reaction utilizing boron-containing carboxylic acids or aldehydes is discussed. The reaction was carried out in water and facilitated by the use of microwave irradiation.
Po-Shen Pan, Fang-Rong Chang, Chia-Hung Lin, Hsien-Chi Chen, Yang-Chang Wu, Pin-Yi Liu, Chih-Cheng Chai   +6 more
doaj   +1 more source

Divergent Synthesis of Novel Five-Membered Heterocyclic Compounds by Base-Mediated Rearrangement of Acrylamides Derived from a Novel Isocyanide-Based Multicomponent Reaction

Molecules, 2011
We have recently reported a novel multicomponent reaction between arylacetic acids and isocyanides, affording α-acyloxyacrylamides through an unusual mechanism.
Renata Riva, Andrea Basso, Luca Banfi
doaj   +1 more source

Comparison of the Reaction Characteristics of Different Fuels in the Supercritical Multicomponent Thermal Fluid Generation Process

Energies
Supercritical multicomponent thermal fluid technology is a new technology with obvious advantages in offshore heavy oil recovery. However, there is currently insufficient understanding of the generation characteristics of the supercritical multicomponent
Qiang Fu, Jie Tian, Yongfei Liu, Zhilin Qi, Hongmei Jiao, Shenyao Yang   +5 more
doaj   +1 more source

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

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

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