Zobrazeno 1 - 10
of 28 652
pro vyhledávání: '"Metal-Free"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 2655-2667 (2024)
A transition-metal-free decarbonylation–oxidation protocol for the conversion of 3-arylbenzofuran-2(3H)-ones to 2-hydroxybenzophenones under mild conditions has been developed. NMR studies confirmed the role of in-situ-generated hydroperoxide in th
Externí odkaz:
https://doaj.org/article/d1f90b25d7f141ae9c857a8e080e2529
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 2577-2584 (2024)
A simple and versatile synthesis of arylboronates has been achieved by using triarylbismuthines as aryl radical sources under transition-metal-free and open-air conditions. Conventional methods required photoirradiation or electrolysis to generate ar
Externí odkaz:
https://doaj.org/article/efaf1d3c4d5246c98aa4d304d00df1bb
Publikováno v:
Green Energy & Environment, Vol 9, Iss 9, Pp 1407-1418 (2024)
At room temperature, the conversion of greenhouse gases into valuable chemicals using metal-free catalysts for dry reforming of methane (DRM) is quite promising and challenging. Herein, we developed a novel covalent organic porous polymer (TPE-COP) w
Externí odkaz:
https://doaj.org/article/96a71a8e97d145baacdae3002bdb885a
Publikováno v:
Green Synthesis and Catalysis, Vol 5, Iss 3, Pp 186-190 (2024)
Two types of poly-porphyrin-based heterogeneous photocatalysts including insoluble polymer and water-soluble nanoparticles exhibited excellent photocatalytic activity in visible-light-induced dehydrogenation in water. The extremely low catalyst loadi
Externí odkaz:
https://doaj.org/article/09b882db22784912a1f4599ac6f80ba8
Publikováno v:
Green Synthesis and Catalysis, Vol 5, Iss 3, Pp 200-204 (2024)
A metal-free, efficient and easy-to-hand protocol for the synthesis of 2-perfluoroalkylquinazolins has been achieved by Eosin B catalyzed radical cascade arylation/cyclization reaction of fluorinated imidoyl isothiocyanates with aryldiazonium Salts.
Externí odkaz:
https://doaj.org/article/356501a25da14bc6ada5cbea9ad240e9
Publikováno v:
Collagen and Leather, Vol 6, Iss 1, Pp 1-12 (2024)
Abstract Hydrophobicity enhancement of metal-free leather, which is crucial for improving its comprehensive performance, can be achieved by using amphiphilic copolymer retanning agents. However, the relationship between the sequential structure and t
Externí odkaz:
https://doaj.org/article/45a2d643f010453c9ec34c17b16672f2
Autor:
Xiaogang Li, Xuesong Wang, Yan Wang, Yinfeng Tan, Dong Liu, Xueying Zhang, Youbin Li, Junyu Xu
Publikováno v:
Journal of Saudi Chemical Society, Vol 28, Iss 6, Pp 101943- (2024)
An efficient, environmentally friendly, and metal-free method for the synthesis of functionalized tetrazole thioethers via the S-arylation of tetrazole-5-thiones using diaryliodonium salts as aryl transfer reagents has been developed. This novel meth
Externí odkaz:
https://doaj.org/article/37c81918ee3148999762c01b101109af
Autor:
J.C. Martínez-Loyola, M.A. Carrasco-Cordero, I.L. Alonso-Lemus, F.J. Rodríguez-Varela, P. Bartolo-Pérez, B. Escobar-Morales, Y.I. Vega-Cantú, F.J. Rodríguez-Macías
Publikováno v:
Electrochemistry Communications, Vol 166, Iss , Pp 107792- (2024)
We report nitrogen-doped biomass-derived porous carbon materials with great performance for the Oxygen Reduction Reaction (ORR) in alkaline media. The level of nitrogen doping in a simple pyrolysis of corncob (CC) was varied systematically, a 1:1 CC:
Externí odkaz:
https://doaj.org/article/eeef6c13ba164c5a8092a9384344db98
Publikováno v:
Main Group Metal Chemistry, Vol 47, Iss 1, Pp 1233-77 (2024)
Externí odkaz:
https://doaj.org/article/4e0e534a6148487dac57470ce2882caf
Publikováno v:
Green Synthesis and Catalysis, Vol 5, Iss 2, Pp 112-116 (2024)
A strategy for the synthesis of α-carboline derivatives from indole-3-carboxaldehydes and 3-aminocyclohex-2-enones under metal-free conditions has been developed. The combination use of phenyliodine (III) diacetate (PIDA) and benzoic acid could sign
Externí odkaz:
https://doaj.org/article/12dc9becb4ae40dab977ef3566998ed1