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Your search keyword '"Yan, Hao"' showing total 3 results
3 results on '"Yan, Hao"'

1. Catalyst-free synthesis of alkyl 4-oxo-4H-pyrido[1,2-a]pyrimidine-2-carboxylate derivatives on water.

Author

Yan, Hao, Ma, Ying, Sun, Yuanjun, Ma, Chao, Wang, Yuling, Ren, Xiaoyu, and Huang, Guosheng

Subjects
*CHEMICAL synthesis, *CARBOXYLATES, *CARBOXYLATE derivatives, *CHEMICAL structure, *PHASE equilibrium, *BIOACTIVE compounds, *SUSTAINABLE chemistry
Abstract

Abstract: An environmentally friendly and effective method to construct 4H-pyrido[1,2-a]pyrimidin-4-one, which are ubiquitous structural units in a number of biologically active compounds has been developed. In this process, the reaction using water as the solvent in absence of catalyst under the mild conditions makes transformations very green, practical, and attractive. [Copyright &y& Elsevier]

Published
2014
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2. Copper-catalyzed dehydrogenative reaction: synthesis of amide from aldehydes and aminopyridine.

Author

Yang, Sizhuo, Yan, Hao, Ren, Xiaoyu, Shi, Xiaokang, Li, Jian, Wang, Yuling, and Huang, Guosheng

Subjects
*COPPER catalysts, *DEHYDROGENATION, *AMIDES, *ALDEHYDES, *AMINOPYRIDINES, *CHEMICAL synthesis, *ENVIRONMENTAL impact analysis
Abstract

Abstract: We have developed a highly efficient method in the presence of copper catalyst to form amides from aminopyridines and aldehydes. This method is simple, environmental benign and has practical advantages in the amide synthesis. [Copyright &y& Elsevier]

Published
2013
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3. Sodium gluconate-assisted hydrothermal synthesis, characterization and electrochemical performance of LiFePO4 powders.

Author

Wang, Juan, Ren, Bing, Hojamberdiev, Mirabbos, Xu, Yunhua, and Yan, Hao

Subjects
*LITHIUM-ion batteries, *ELECTROCHEMISTRY, *METAL powders, *PERFORMANCE evaluation, *CHEMICAL synthesis
Abstract

Highlights: [•] LiFePO4 powders were synthesized by C6H11NaO7-assisted hydrothermal process. [•] The pH of synthesis solution is important for the formation of LiFePO4 powders. [•] Charge–discharge cycling of samples depends on their morphologies. [•] Ellipsoidal LiFePO4 nanoparticles show the highest initial discharge capacity. [Copyright &y& Elsevier]

Published
2014
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