Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Kahdr Alatawi"'
Autor:
Kahdr Alatawi, Ahmad Fawzi Qarah, Haifa Alharbi, Ali Alisaac, Matokah M. Abualnaja, Roba M.S. Attar, Amerah Alsoliemy, Nashwa M. El-Metwaly
Publikováno v:
Heliyon, Vol 10, Iss 19, Pp e38294- (2024)
Diethyl 2-(((4-methyl-2-oxo-2H-chromen-7-yl)oxy)methylene)malonate (2) was synthesized from coumarin 1 and diethyl ethoxymethylene malonate in ethanol, followed by cyclization in diphenyl ether to give chromene-9-carboxylate (3). Sugar hydrazones 5a-
Externí odkaz:
https://doaj.org/article/bc01e436c9a542c7b2658e7e54049af9
Autor:
Ahmed M. Abdula, Ahmad Fawzi Qarah, Kahdr Alatawi, Jihan Qurban, Matokah M. Abualnaja, Hanadi A. Katuah, Nashwa M. El-Metwaly
Publikováno v:
Heliyon, Vol 10, Iss 7, Pp e28573- (2024)
The present work aims to synthesize four series of phenothiazine incorporation Mannich bases. Therefore, 10-methyl-10H-phenothiazine-3-sulfonamide (4) which was subjected to react with some secondary amines and formaldehyde to give the Mannich bases
Externí odkaz:
https://doaj.org/article/51374e03c9ea4278bd5031ea1ec5f106
Autor:
Ahmad Fawzi Qarah, Kahdr Alatawi, Adel I. Alalawy, Rua B. Alnoman, Alaa M. Alqahtani, Matokah M. Abualnaja, Wael M. Alamoudi, Nashwa M. El-Metwaly
Publikováno v:
Journal of Taibah University for Science, Vol 17, Iss 1 (2023)
The significant biological activity of phenylthiourea derivatives prompted the synthesis of a new phenylthiourea-based heterocyclic ring systems (pyrazole, thiazole, and pyran), and their chemical structures were elucidated by spectral data. The DFT/
Externí odkaz:
https://doaj.org/article/45cbff5ee9bc46979126764b1dfadf3f
Autor:
Abrar Bayazeed, Rua B. Alnoman, Kahdr Alatawi, Omar M. Alatawi, Alaa M. Alqahtani, Mariam Mojally, Noof A. Alenazi, Nashwa M. El-Metwaly
Publikováno v:
Journal of Saudi Chemical Society, Vol 27, Iss 6, Pp 101754- (2023)
Several new thiazole derivatives linked pyrazole and/or pyridine rings were synthesized based on the versatile precursor 2-(5-acetyl-4-methyl-3-phenylthiazol-2(3H)-ylidene)acetonitrile (1). The synthesized derivatives were optimized using DFT approac
Externí odkaz:
https://doaj.org/article/26e69a90e5d2492b9a7fcc241ece580a