Výsledky vyhledávání - "Sadek Kamal Usef"

Akademický článek

Regioselectivity in the reaction of 5-amino-3-anilino-1H-pyrazole-4-carbonitrile with cinnamonitriles and enaminones: Synthesis of functionally substituted pyrazolo[1,5-a]pyrimidine derivatives

Autor: Moustafa Moustafa Sherif, Nour-Eldeen Ahmed Moukhtar, Al-Mousawi Saleh Mohamed, El-Hameed Afaf Abd, Magdy Michael, Sadek Kamal Usef

Publikováno v: Green Processing and Synthesis, Vol 11, Iss 1, Pp 116-128 (2022)

The development of efficient methods for the synthesis of polyfunctional N-heterocycles is an important area of research in organic and medicinal chemistry. Pyrazolo[1,5-a]pyrimidine derivatives are purine analogous of biomedical importance and have

Externí odkaz: https://doaj.org/article/3db5bca339d64bd0903fe377fd21f1db

Zobrazit plný text záznamu

Akademický článek

Microwave-assisted reactions: Efficient and versatile one-step synthesis of 8-substituted xanthines and substituted pyrimidopteridine-2,4,6,8-tetraones under controlled microwave heating

Autor: Mekheimer Ramadan Ahmed, Hayallah Alaa M., Moustafa Moustafa Sherief, Al-Mousawi Saleh Mohammed, Abd-Elmonem Mohamed, Mostafa Sara M., Abo Elsoud Fatma A., Sadek Kamal Usef

Publikováno v: Green Processing and Synthesis, Vol 10, Iss 1, Pp 201-207 (2021)

A green, simple one-pot microwave-assisted synthesis of xanthines and pyrimidopetridines was developed with a high EcoScale and yields.

Externí odkaz: https://doaj.org/article/fa3d4c51b2dc4624aeb20cec9212a377

Zobrazit plný text záznamu

Akademický článek

An efficient green synthesis of novel 1H-imidazo[1,2-a]imidazole-3-amine and imidazo[2,1-c][1,2,4]triazole-5-amine derivatives via Strecker reaction under controlled microwave heating

Autor: Sadek Kamal Usef, Abdel-Hameed Afaf Mohamed, Abdelnabi Hisham A., Meleigy Yasser

Publikováno v: Green Processing and Synthesis, Vol 8, Iss 1, Pp 297-301 (2019)

A highly efficient multi-component one-pot synthesis of novel 1H-imidazo[1,2-a]imidazole-3-amine and imidazo[2,1-c][1,2,4]triazole-5-amine derivatives has been developed through the reaction of easily available aromatic aldehydes, benzoyl cyanide and

Externí odkaz: https://doaj.org/article/e735fbb0158941179c0069f2f26d3a50

Zobrazit plný text záznamu

Akademický článek

An efficient and catalyst-free synthesis of N-arylidene-2-arylimidazo[1,2-a]pyridine-3-ylamine derivatives via Strecker reaction under controlled microwave heating

Autor: Abdel Hameed Afaf Mohamed, Moustafa Moustafa Sherief, Al-Mousawi Saleh Mohammed, Awed Reham R., Sadek Kamal Usef

Publikováno v: Green Processing and Synthesis, Vol 6, Iss 4, Pp 371-375 (2017)

An efficient one-pot multicomponent reaction of 2-aminopyridine with aromatic aldehydes and either benzoyl cyanide or cyanamide in pyridine under controlled microwave heating afforded N-aryldene-2-arylimidazo[1,2-a]-pyridine-3-ylamine derivatives. Th

Externí odkaz: https://doaj.org/article/9d73921419524d89bbe5f9b6dae5426b

Zobrazit plný text záznamu

Akademický článek

An efficient multicomponent, one-pot synthesis of Betti bases catalyzed by cerium (IV) ammonium nitrate (CAN) at ambient temperature

Autor: Mekheimer Ramadan Ahmed, Asiri Abdullah Mohamed, Abdel Hameed Afaf Mohamed, Awed Reham R., Sadek Kamal Usef

Publikováno v: Green Processing and Synthesis, Vol 5, Iss 4, Pp 365-369 (2016)

Starting from readily available 2-naphthol, aldehydes, aryl and alkylamines, a variety of Betti bases were efficiently synthesized utilizing a catalytic amount of cerium (IV) ammonium nitrate (CAN) at room temperature. This protocol has advantages of

Externí odkaz: https://doaj.org/article/d1ce2ca68075435981b76eb4fcb4ec48

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání