Zobrazeno 1 - 10
of 495
pro vyhledávání: '"F. A. Wahab"'
Publikováno v:
Molbank, Vol 2024, Iss 2, p M1798 (2024)
The reaction of equimolar quantities of 3-(1-(4-methoxyphenyl)-5-methyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde and (2,4,6-trichlorophenyl)hydrazine in ethanol containing concentrated hydrochloric acid (0.2 mL; 37%) as a catalyst u
Externí odkaz:
https://doaj.org/article/d4a76d3152f94576ba8454977e10ccac
Publikováno v:
Molbank, Vol 2024, Iss 1, p M1789 (2024)
The reaction of (E)-2-(4-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one and (2,4-dinitrophenyl)hydrazine in boiling ethanol containing hydrochloric acid (0.2 mL; 37%) for 1.5 h gave 1-(2,4-dinitrophenyl)-2-(2-(4-fluorobenzylidene)-3,4-dihydronaph
Externí odkaz:
https://doaj.org/article/aa118ed8939741d690eab0718fb40a51
Publikováno v:
Molbank, Vol 2024, Iss 1, p M1790 (2024)
The reaction of a mixture of equimolar quantities of 2-acetylbenzofuran and (2,4,6-trichlorophenyl)hydrazine in ethanol containing concentrated hydrochloric acid (0.2 mL; 37%) as a catalyst under reflux for two hours yielded 1-(1-(benzofuran-2-yl)eth
Externí odkaz:
https://doaj.org/article/d811b7e31db14e51b21f76801b45c143
Publikováno v:
Molbank, Vol 2023, Iss 3, p M1720 (2023)
The reaction of 2-bromo-1-(5-methyl-1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl)ethan-1-one (1) with 4-amino-5-((2,4-dichlorophenoxy)methyl)-4H-1,2,4-triazole-3-thiol (2) in absolute ethanol in the presence of triethyl amine as catalyst gave 2-((4-amino-
Externí odkaz:
https://doaj.org/article/8b47f27b16544abea2c3228856d33258
Publikováno v:
Molbank, Vol 2023, Iss 2, p M1657 (2023)
The reaction of equimolar equivalents of 1-(4-methoxyphenyl)-5-methyl-1H-1,2,3-triazole-4-carbohydrazide (1) and 2-acetylbenzofuran (2) in anhydrous ethanol containing a catalytic amount of concentrated hydrochloric acid under reflux for 2 h gave (E)
Externí odkaz:
https://doaj.org/article/a330e5020c1c4683b6e139e01633e460
Publikováno v:
Molbank, Vol 2023, Iss 2, p M1665 (2023)
The reaction of a 1:1 mixture of 3-(benzofuran-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde (1) and 2-((4-methoxyphenyl)imino)-3-phenylthiazolidin-4-one (2) in anhydrous ethanol containing piperidine as a catalyst under reflux for 4 h gave (2Z,5Z)-5-((3
Externí odkaz:
https://doaj.org/article/6c4c68a48da84a6a9f4aa0e1d2c7c96d
Autor:
Bakr F. Abdel-Wahab, Ahmed F. Mabied, James C. Fettinger, Ahmed H. E. Hassan, Abdelbasset A. Farahat
Publikováno v:
Molbank, Vol 2023, Iss 2, p M1666 (2023)
A promising imidazole compound was synthesized through the following route. The reaction of 5-methyl-2-phenyl-1H-imidazole-4-carbohydrazide (1) with carbon disulfide and potassium hydroxide in ethanol (80%) afforded potassium salt (2). Refluxing of (
Externí odkaz:
https://doaj.org/article/ef7f117185c249c08b308265a89e28fc
Autor:
Bakr F. Abdel-Wahab, Abdelbasset A. Farahat, Mohamed S. Bekheit, Emad Yousif, Benson M. Kariuki, Gamal A. El-Hiti
Publikováno v:
IUCrData, Vol 8, Iss 5, p x230455 (2023)
The asymmetric unit of the title compound, C25H19N5O3, is composed of two independent molecules with slightly different conformations. The extended structure features N—H...O hydrogen bonds as well as π–π interactions.
Externí odkaz:
https://doaj.org/article/e0fbd835cf1247c2b999a1775eca9eee
Publikováno v:
BMC Chemistry, Vol 16, Iss 1, Pp 1-9 (2022)
Abstract It is critical to take safety action if carcinogenic heavy metals and ammonia can be detected quickly, cheaply, and selectively in an environmental sample. As a result, compound 4a [4-(1-(2-(2,4-Dinitrophenyl)hydrazineylidene)-3-(naphthalen-
Externí odkaz:
https://doaj.org/article/549adf40df1240279755c478dde1b410
Publikováno v:
Molbank, Vol 2023, Iss 1, p M1593 (2023)
The reaction of 1-(5-methyl-1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl)ethan-1-one (1) with excess hydroxylamine hydrochloride (2 mole equivalents) in dry ethanol afforded (E)-1-(5-methyl-1-(4-nitrophenyl)-1H-1,2,3-triazol-4-yl)ethan-1-one oxime (2) in
Externí odkaz:
https://doaj.org/article/b9e99e8dd0794866b0151e15f63c4053