Catalytic Synthesis of Pyrazine and Ketone Derivatives by Unsymmetrical Triazolyl-Naphthyridinyl-Pyridine Copper DOI Open Access
Jiahao Li, Yike Yang, Wenkang Hu

et al.

Chinese Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 42(1), P. 190 - 190

Published: Jan. 1, 2022

A novel method for the synthesis of pyrazine and ketone derivatives was developed by using asymmetric ligand-based catalyst [email protected] screening reaction bases, solvents, temperatures time conducted to determine optimal conditions.The scope generality this methodology pyrazines were tested results showed that catalytic system had good functional tolerance.More than twenty substrates experiments successfully set up, with moderate high yields isolated.Additionally, could also be used systhesis ketones in yields.Furthermore, mechanism investigations better understand pyrazines.The recycling test TNP-Cu@rGO investigated still maintain activity five times.

Language: Английский

Cu Species-Modified OMS-2 Materials for Enhancing Ozone Catalytic Decomposition under Humid Conditions DOI Creative Commons

Chonglai Chen,

Jun Xie, Xiao Chen

et al.

ACS Omega, Journal Year: 2023, Volume and Issue: 8(22), P. 19632 - 19644

Published: May 22, 2023

Manganese oxide octahedral molecular sieves (OMS-2) exhibit an excellent performance in ozone catalytic decomposition dry atmosphere conditions, which however is severely limited by deactivation humid conditions. Herein, it was found that the OMS-2 materials modified with Cu species could obviously improve both activity and water resistance. Based on characterization results, these CuOx/OMS-2 catalysts exhibited dispersed CuOx nanosheets attached located at external surface accompanied ionic entering MnO6 framework of OMS-2. In addition, demonstrated main reason for promotion be ascribed to combined effect different catalysts. On one hand, entered near catalyst substituted Mn species, resulting enhanced mobility oxygen formation more vacancies, act as active sites decomposition. other serve non-oxygen vacancy H2O adsorption, alleviate some extent caused occupancy vacancies. Finally, reaction pathways over under conditions were proposed. The findings this work may shed new light design highly efficient improved

Language: Английский

Citations

13
Catalytic Synthesis of Pyrazine and Ketone Derivatives by Unsymmetrical Triazolyl-Naphthyridinyl-Pyridine Copper DOI Open Access
Jiahao Li, Yike Yang, Wenkang Hu

et al.

Chinese Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 42(1), P. 190 - 190

Published: Jan. 1, 2022

A novel method for the synthesis of pyrazine and ketone derivatives was developed by using asymmetric ligand-based catalyst [email protected] screening reaction bases, solvents, temperatures time conducted to determine optimal conditions.The scope generality this methodology pyrazines were tested results showed that catalytic system had good functional tolerance.More than twenty substrates experiments successfully set up, with moderate high yields isolated.Additionally, could also be used systhesis ketones in yields.Furthermore, mechanism investigations better understand pyrazines.The recycling test TNP-Cu@rGO investigated still maintain activity five times.

Language: Английский

Citations

8