Zobrazeno 1 - 10
of 4 342
pro vyhledávání: '"Recyclable catalyst"'
Autor:
Nuzhat Rehman, Ayaz Mahmood Dar, Raja Feroz Ahmad Haji, Sharief-ud-din Khan, Deepak Pareek, Saleem Farooq, Bashir Ahmad Dar
Publikováno v:
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 19, Iss 1, Pp 76-83 (2024)
This study introduces an environmentally sustainable approach for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones (DHPMs), via the Biginelli reaction. A heterogeneous catalyst, Heteropolyacid-Clay (HPA-Clay), is developed by immobilizing H5PV2W10O40
Externí odkaz:
https://doaj.org/article/bb7a639bfc2f4f6fa1bbec6a85d11f42
Publikováno v:
Green Chemical Engineering, Vol 5, Iss 2, Pp 257-265 (2024)
Waste plastics are serious environmental threats due to their low degradability and low recycling rate. Rapid and efficient waste plastics recycling technologies are urgently demanded for a sustainable future. Herein, we report a rapid, closed-loop,
Externí odkaz:
https://doaj.org/article/741354597af14e1cab249df3de49bbe0
Publikováno v:
Results in Chemistry, Vol 8, Iss , Pp 101587- (2024)
This work describes the first-ever use of Wet copper slag for 2-(subs.)-1H-benzimidazoles synthesis. It is a by-product of the copper refining and smelting processes utilized as a basic catalyst in the present work. Wet copper slag is prepared by imm
Externí odkaz:
https://doaj.org/article/70a1e613afd04053a4fe34314f9c2047
Autor:
Ayashkanta Nanda, Navneet Kaur, Manvinder Kaur, Fohad Mabood Husain, Haesook Han, Pradip K. Bhowmik, Harvinder Singh Sohal
Publikováno v:
Molecules, Vol 29, Iss 18, p 4339 (2024)
The magnetically recoverable heterogeneous Fe2O3@cellulose@Mn nanocomposite was synthesized by a stepwise fabrication of Mn nanoparticles on cellulose-modified magnetic Fe2O3 nanocomposites, and the morphology of the nanocomposite was characterized t
Externí odkaz:
https://doaj.org/article/963385ca8b4a413aa26ee46cc98ba4f3
Publikováno v:
Catalysis Communications, Vol 184, Iss , Pp 106784- (2023)
The development of 3D hierarchical architectures composed of nanometer-sized primary building blocks holds great promise for a wide range of applications. Here, we present a simple synthesis method for hierarchical CuO nanomaterials. HRTEM images rev
Externí odkaz:
https://doaj.org/article/512b8b3b9e5f434883d4a236aad661c5
Autor:
Davide Pollon, Francesca Annunziata, Stefano Paganelli, Lucia Tamborini, Andrea Pinto, Sabrina Fabris, Maria Antonietta Baldo, Oreste Piccolo
Publikováno v:
Molecules, Vol 29, Iss 3, p 726 (2024)
The acylation of 1,3-benzodioxole was studied in a continuous process using a recyclable heterogeneous substoichiometric catalyst. In a short time period (30 min), at 100 °C, the conversion rate was 73%, with a selectivity of 62% of the desired acyl
Externí odkaz:
https://doaj.org/article/5b5cddbc268f4d2ab1407a8cf201e39a
Akademický článek
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Akademický článek
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Autor:
Milad Taheri, Zanko Hassan Jawhar
Publikováno v:
Green Chemistry Letters and Reviews, Vol 15, Iss 3, Pp 813-824 (2022)
In this context, we have demonstrated a highly efficient and green process for the preparation of various potentially biologically active functionalized 4-(5-hydroxybenzo[a]phenazin-6-yl)-5-phenyl-1,3-dihydro-2H-imidazol-2-one derivatives via a one-p
Externí odkaz:
https://doaj.org/article/a78672834dfd4c58b6ddf93d800f0e4f
Autor:
Soumyadip Basu, Sauvik Chatterjee, Suman Ray, Suvendu Maity, Prasanta Ghosh, Asim Bhaumik, Chhanda Mukhopadhyay
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 18, Iss 1, Pp 133-142 (2022)
A heterogeneous and magnetically recyclable Ni–chitosan nanocatalyst was synthesized and thoroughly characterized by powder Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), high-r
Externí odkaz:
https://doaj.org/article/ba9c6d53ed6247e38be103b9e1faedbb