Zobrazeno 1 - 10
of 4 162
pro vyhledávání: '"[3+2] cycloaddition"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1436-1443 (2024)
An efficient protocol for the synthesis of polyfunctionalized tetrahydrocyclopenta[4,5]pyrrolo[2,3-b]pyridine-3,4b,5,6,7(1H)-pentacarboxylates was developed by a three-component reaction. In the absence of any catalyst, the three-component reaction o
Externí odkaz:
https://doaj.org/article/cda10227e0da41938f63167d71a80ca0
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Autor:
Assem Barakat, Saeed Alshahrani, Abdullah Mohammed Al-Majid, Abdullah Saleh Alamary, M. Ali, Mar Ríos-Gutiérrez
Publikováno v:
Chemistry, Vol 5, Iss 4, Pp 2392-2405 (2023)
A one-pot multi-component reaction was employed for the stereoselective synthesis of a novel set of dispiro-oxindolopyrrolizidines analogs incorporating a thiazolo[3,2-a]benzimidazole scaffold based on the [3 + 2] cycloaddition (32CA) reaction approa
Externí odkaz:
https://doaj.org/article/ea263ba3946b4d75844fb59842c11717
Decarboxylative 1,3-dipolar cycloaddition of amino acids for the synthesis of heterocyclic compounds
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 19, Iss 1, Pp 1677-1693 (2023)
The [3 + 2] cycloadditions of stabilized azomethine ylides (AMYs) derived from amino esters are well-established. However, the reactions of semi-stabilized AMYs generated from decarboxylative condensation of α-amino acids with arylaldehydes are much
Externí odkaz:
https://doaj.org/article/31424f45d7da486da274332d3b1e59d1
Publikováno v:
Catalysts, Vol 14, Iss 8, p 508 (2024)
We reported palladium-catalyzed regioselective [3+2] cycloadditions of α,β-unsaturated imines with vinylethylene carbonates, providing the desired oxazolidines in moderate-to-high yields. This reaction provides a facile route for the highly regiose
Externí odkaz:
https://doaj.org/article/a0b78f4f5d7f44b988b2c16b06007b1c
Autor:
Mohamed S. Nafie, Abdullah Mohammed Al-Majid, M. Ali, Abdulmajeed Abdullah Alayyaf, Matti Haukka, Sajda Ashraf, Zaheer Ul-Haq, Ayman El-Faham, Assem Barakat
Publikováno v:
Frontiers in Chemistry, Vol 12 (2024)
Cancer represents a global challenge, and the pursuit of developing new cancer treatments that are potent, safe, less prone to drug resistance, and associated with fewer side effects poses a significant challenge in cancer research and drug discovery
Externí odkaz:
https://doaj.org/article/c5aee876059544519e4d3186d086f71f
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 19, Iss 1, Pp 1545-1554 (2023)
Here, we report the first transition-metal-free defluorinative cycloaddition of gem-difluoroalkenes with organic azides in morpholine as a solvent to construct fully decorated morpholine-substituted 1,2,3-triazoles. Mechanistic studies revealed the f
Externí odkaz:
https://doaj.org/article/a25db0ba7b9c4d88b9abc3836be4b5de
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 19, Iss 1, Pp 1408-1442 (2023)
N-Heterocyclic carbenes (NHCs) are a special type of carbenes in which the carbene carbon atom is part of the nitrogen heterocyclic ring. Due to the simplicity of their synthesis and the modularity of their stereoelectronic properties, NHCs have unqu
Externí odkaz:
https://doaj.org/article/fd077960736045c79ea3c6360320f067
Akademický článek
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