Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Mosselhi A. N. Mosselhi"'
Publikováno v:
Molecules
Volume 17
Issue 7
Pages 8483-8493
Volume 17
Issue 7
Pages 8483-8493
A simple strategy for the synthesis of the hitherto unreported 3-arylazo-4-phenyl- [1,2,4]triazepino[2,3-a]quinazoline-2,7(1H)-diones is described. Spectral data indicated that the studied compounds exist predominantly in the hydrazone tautomeric for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a1c65c0b851d5493a6100064f7bc90a
https://doi.org/10.3390/molecules17078483
https://doi.org/10.3390/molecules17078483
Publikováno v:
Nucleosides, Nucleotides and Nucleic Acids. 30:681-695
The condensation of 6-amino-2-thioxo-2,3-dihydro-1H-pyrimidine-4-one [compound (1)] with aromatic aldehydes (2) afforded azomethine derivatives (3). The formed azomethines underwent glycosidation with α-acetobromoglucose (4) to form the correspondin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8192dc313fa6fd119918b86619787f8
https://doi.org/10.1080/15257770.2011.597628
https://doi.org/10.1080/15257770.2011.597628
Publikováno v:
Molecules, Vol 16, Iss 6, Pp 4937-4957 (2011)
Molecules
Molecules; Volume 16; Issue 6; Pages: 4937-4957
Molecules
Molecules; Volume 16; Issue 6; Pages: 4937-4957
Rapid and efficient solvent-free synthesis of 4-amino-3-mercapto-6-[2-(2-thienyl)vinyl]-1,2,4-triazin-5(4H)-one 1 under microwave irradiation is described. Some new fused heterobicyclic nitrogen systems such as 1,2,4-triazino[3,4-b][1,3,4]thiadiazino
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cbe6139cc2f767eacb5630f6db29de6
http://www.mdpi.com/1420-3049/16/6/4937/
http://www.mdpi.com/1420-3049/16/6/4937/
Publikováno v:
Carbohydrate Research. 345:1135-1141
5-Arylidene-2-thioxo-4-thiazolidinones 3a-f react with each of 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl and alpha-D-galactopyranosyl bromides 4a,b in acetone in the presence of aqueous potassium hydroxide at room temperature to afford N-(2,3,4,6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c8ff1b67d337cb762ce7c7242f48e6b
https://doi.org/10.1016/j.carres.2010.04.011
https://doi.org/10.1016/j.carres.2010.04.011
Autor:
Nadia Hanavy Metwally, Ibrahim Adel El-Desoky, Magda Ahmed Abdallah, Laila M. Break, Mosselhi A. N. Mosselhi
Publikováno v:
Arkivoc. 2009:53-63
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5bf4e2a2c6ce128bd101acefc6e6d06
https://doi.org/10.3998/ark.5550190.0010.e05
https://doi.org/10.3998/ark.5550190.0010.e05
Autor:
R. Neidlein, Mosselhi A. N. Mosselhi
Publikováno v:
Nucleosides, Nucleotides and Nucleic Acids. 28:1095-1103
Ribosylation of 3-methylthio-5-phenyl-1,2,4-triazole (1) with ribose derivative 2 gave the protected 1,2,4-triazole-nucleoside 3, which reacted with hydrazine hydrate to afford the 3-hydrazino-1,2,4-triazole derivative 5. Reaction of 5 with aromatic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::776ac664ad81f2028a57c6691de009b6
https://doi.org/10.1080/15257770903368377
https://doi.org/10.1080/15257770903368377
Autor:
Thoraya A. Farghaly, Mohamed R. Shehata, Ahmad S. Shawali, Nagla M. Tawfik, Mosselhi A. N. Mosselhi
Publikováno v:
Journal of Chemical Research. 2008:452-456
Two series of 3,6- bis(arylazo)pyrazolo[1,5- a]pyrimidine-5,7-diones were prepared, and their acid dissociation constant pKas were determined and correlated with the Hammett equation. The results of these correlations, together with the spectroscopic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10e795b569ac503e2617a1fc6e2347dd
https://doi.org/10.3184/030823408x339782
https://doi.org/10.3184/030823408x339782
Autor:
Thoraya A. Farghaly, Farag M.A. Altablawy, Nagla M. Tawfik, Mosselhi A. N. Mosselhi, Ahmad S. Shawali
Publikováno v:
Tetrahedron. 64:5524-5530
Three series of 3,7-bis(arylazo)-6-methyl-2-phenyl-1 H -imidazo-[1,2- b ]pyrazoles were prepared starting from N -aryl 2-oxo-2-phenylethanehydrazonoyl bromides and 5-amino-4-arylazo-3-methyl pyrazoles. The acid dissociation constants p K and p K ∗
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0736647ad106fd44d50122536d5e8491
https://doi.org/10.1016/j.tet.2008.03.096
https://doi.org/10.1016/j.tet.2008.03.096
Publikováno v:
Journal of Chemical Research. 2007:479-483
Two series of the title compounds were prepared via reaction of N-aryl 2-oxohydrazonoyl halides with 1-amino-4-phenylimidazoline-2-thione. Their tautomeric structure was elucidated by spectral analysis, and the correlation of their acid dissociation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9530829057650507a6dbf84f1add5c9e
https://doi.org/10.3184/030823407x237885
https://doi.org/10.3184/030823407x237885
Publikováno v:
Journal of Heterocyclic Chemistry. 44:285-288
Reactions of 4-arylhydrazono-2-methylthio-imidazolin-5(1H)-one 3 with various hydrazonoyl halides 1 proved to be site-selective and yielded the respective imidazo[2,1-c][1,2,4]triazole derivatives 8. The structure of the latter was elucidated by X-ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eaff9a0d6fc6f6abe011ba68c9fc0a8
https://doi.org/10.1002/jhet.5570440202
https://doi.org/10.1002/jhet.5570440202