Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Abdou O. Abdelhamid"'
Autor:
Abdou O. Abdelhamid, Ibrahim E. El Sayed, Yasser H. Zaki, Ahmed M. Hussein, Mangoud M. Mangoud, Mona A. Hosny
Publikováno v:
BMC Chemistry, Vol 13, Iss 1, Pp 1-18 (2019)
Abstract Background Pyrazolines show different biological activities. In recent years, interest in the chemistry of hydrazonoyl halides has been renewed. 1,3,4-Thiadiazoles are one of the most common heterocyclic pharmacophores with a wide range of b
Externí odkaz:
https://doaj.org/article/a2fb9e2baf9d44a8bc4aeb89d74244b5
Publikováno v:
BMC Chemistry, Vol 13, Iss 1, Pp 1-10 (2019)
Abstract Background Thiazole is a core structural motif presents in a wide range of natural products. Thiazole derivatives also have a wide range of medicinal and biological properties. Results The reaction of hydrazonoyl halides with 2-(1-(4-(1,3-di
Externí odkaz:
https://doaj.org/article/32e8712f52244798a1a64f4965897482
Publikováno v:
Chemistry Central Journal, Vol 12, Iss 1, Pp 1-14 (2018)
Abstract Background Chalcones have a place with the flavonoid family and show a few very important pharmacological activities. They can used as initial compounds for synthesis of several heterocyclic compounds. The compounds with the backbone of chal
Externí odkaz:
https://doaj.org/article/b6d4d50f3cd440fd8a52d7adffdffce1
Publikováno v:
Chemistry Central Journal, Vol 11, Iss 1, Pp 1-14 (2017)
Abstract Background Pyrazolo[1,5-a]pyrimidines are purine analogues. They have beneficial properties as antimetabolites in purine biochemical reactions. This division compounds have attracted wide pharmaceutical interest because of their antitrypanos
Externí odkaz:
https://doaj.org/article/80f6fc6e1e4448e0a2c3f4db83f1ba79
Publikováno v:
Molecules, Vol 20, Iss 12, Pp 21826-21839 (2015)
Coumarin derivatives containing pyrazolo[1,5-a]pyrimidine, tetrazolo[1,5-a]pyrimidine, imidazo[1,2-a]pyrimidine, pyrazolo[3,4-d]pyrimidine, 1,3,4-thiadiazoles and thiazoles were synthesized from 6-bromo-3-(3-(dimethylamino)acryloyl)-2H-chromen-2-one,
Externí odkaz:
https://doaj.org/article/f6eb8d869fe74c029f7825bacfff01f6
Publikováno v:
Journal of Advanced Research, Vol 6, Iss 6, Pp 885-893 (2015)
Starting from N-aryl 2-aroylhydrazono-propanehydrazonoyl chlorides, a series of new functionalized 1,3,4-thiadiazoles were prepared. The structures of the compounds prepared were confirmed by both elemental and spectral analyses as well as by alterna
Externí odkaz:
https://doaj.org/article/19994b2a506841cf917073784e70738c
Publikováno v:
Molecules, Vol 20, Iss 1, Pp 1357-1376 (2015)
Reactions of hydrazonoyl halides and each of methyl 2-(1-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)ethylidene)hydrazine-1-carbodithioate and 2-(1-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)ethylidene)hydrazine-1-carbothioamide afforded 2-(1-(5-methyl-1-
Externí odkaz:
https://doaj.org/article/82585124c008493daa8844d4439d71c5
Publikováno v:
Journal of Advanced Research, Vol 1, Iss 2, Pp 137-144 (2010)
Pyrrolo[3,4-c]pyrazole-4,6(1H,5H)-dione, pyrano[2,3-c]pyrazole-5-carbonitrile, pyrano[2,3-d]4-imidazolines, pyrido[2,1-b]benzimidazole, pyrido[2,1-b][1,3]benzoxazole, pyrido[2,1-b][1,3]benzothiazole and pyrido[2,1-b]quinazoline were synthesised from
Externí odkaz:
https://doaj.org/article/85e647c582bb4af5a72c729a8665a842
Publikováno v:
Molecules, Vol 22, Iss 2, p 268 (2017)
In this study, 1-(5-Methyl-1-(p-tolyl)-1H-1,2,3-triazol-4-yl)ethan-1-one, was reacted with Thiosemicarbazide, alkyl carbodithioate and benzaldehyde to give thiosemicarbazone, alkylidenehydrazinecarbodithioate and 3-phenylprop-2-en-1-one-1,2,3-triazol
Externí odkaz:
https://doaj.org/article/6ced33d623f24f1b8e776d50d920af08
Publikováno v:
Molecules, Vol 5, Iss 7, Pp 967-973 (2000)
Pyrrolidino[3,4-c]pyrazoline and pyrazole derivatives were synthesized via reactions of a substituted hydrazonoyl bromide with N-arylmaleimides and active methylene reagents, respectively. Synthesized pyrazoles were reacted with hydrazine hydrate to
Externí odkaz:
https://doaj.org/article/70af586843604221929f79067d89c111