Zobrazeno 1 - 10
of 258
pro vyhledávání: '"Magdy A. Ibrahim"'
Autor:
Ibtisam Alali, Magdy A. Ibrahim, N. Roushdy, Al-Shimaa Badran, Alaa Muqbil Alsirhani, A.A.M. Farag
Publikováno v:
Heliyon, Vol 10, Iss 20, Pp e39468- (2024)
In this study, we synthesized a novel compound, 3-(5-amino-1,3,4-thiadiazol-2-yl)-6-ethyl-4-hydroxy-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione (ATEHPQ), through a condensation reaction between 6-ethyl-4-hydroxy-2,5-dioxo-5,6-dihydro-2H-pyrano [3,2-c]qui
Externí odkaz:
https://doaj.org/article/140a341bfd5448f596eade7e934a452e
Publikováno v:
Molecules, Vol 29, Iss 18, p 4496 (2024)
2-Chloropyridine-3-carbonitrile derivative 1 was utilized as a key precursor to build a series of linear and angular annulated pyridines linked to a 6-hydroxy-4,7-dimethoxybenzofuran moiety. Reaction of substrate 1 with various hydrazines afforded py
Externí odkaz:
https://doaj.org/article/50ffa35ac13f401ca5a29424330b437e
Publikováno v:
Molecules, Vol 29, Iss 10, p 2319 (2024)
The goal of this study was directed to synthesize a novel class of annulated compounds containing difuro[3,2-c:3′,2′-g]chromene. Friedländer condensation of o-aminoacetyl derivative 3 was performed with some active methylene ketones, namely, 1,3
Externí odkaz:
https://doaj.org/article/e746138c45234572896866da60b6be2c
Autor:
Magdy A. Ibrahim, Shimaa Abdel Halim, N. Roushdy, Al-Shimaa Badran, Emad M. Ahmed, A.A.M. Farag
Publikováno v:
Journal of Materials Research and Technology, Vol 14, Iss , Pp 3092-3110 (2021)
In the current exploration, an innovative 3-[(3-Cyano-1,2-dihydro-2-oxopyridin-5-yl) carbonyl]-1-methyl-4-hydroxyquinolin-2(1H)-one (CPCMHQ) structure was synthesized by condensation reaction and prepared as thin films for the first time in a simple,
Externí odkaz:
https://doaj.org/article/367a9efa231748a28ee97016940e8de1
Autor:
Shimaa Abdel Halim, Magdy A. Ibrahim
Publikováno v:
Results in Chemistry, Vol 4, Iss , Pp 100572- (2022)
Chemical transformation of 6-bromochromone-3-carbonitrile (1) with cyanoacetohydrazide in boiling acetic acid yielded the novel 9-bromo-3 hydroxychromeno[4,3-b]pyrazolo[4,3-e]pyridin-5(1H)-one (2, BHCPP). At the B3LYP/6–311++G (d, p) level, Density
Externí odkaz:
https://doaj.org/article/855edcaf14ac45f6aeee931ec951f7f4
Publikováno v:
Arabian Journal of Chemistry, Vol 12, Iss 8, Pp 3723-3731 (2019)
A new derivative of heteroannulated chromeno[2,3-b]pyridine identified as 5-ethyl-7H,9H-chromeno[3″,2″:5′,6′]pyrido[3′,2′:5,6]pyrano[3,2-c]quinoline-6(5H),7,9-trione (3) (ECPPQT) was easily and efficiently synthesized from DBU catalyzed c
Externí odkaz:
https://doaj.org/article/3e7b030330e4417ab8e7833b096c7392
Autor:
Magdy A. Ibrahim, Al-Shimaa Badran
Publikováno v:
ARKIVOC, Vol 2018, Iss 7, Pp 214-224 (2018)
Externí odkaz:
https://doaj.org/article/05250a28e2624e00a0edc421706d96ec
Publikováno v:
ARKIVOC, Vol 2013, Iss 4, Pp 424-431 (2013)
Externí odkaz:
https://doaj.org/article/eae8d56e0a1742d697217612583f4910
Publikováno v:
ARKIVOC, Vol 2013, Iss 4, Pp 217-226 (2013)
Externí odkaz:
https://doaj.org/article/27b5376824be46fa95aa6448d700b78a
Publikováno v:
ARKIVOC, Vol 2013, Iss 3, Pp 282-293 (2013)
Externí odkaz:
https://doaj.org/article/0345cd826d4445ea9f8af548bbb3122c