Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Mosselhi A. Mosselhi"'
Publikováno v:
Molecules, Vol 16, Iss 10, Pp 8788-8802 (2011)
A series of new 8-arylhydrazono-2-(benzylsulfanyl)-7H-purin-6-ones 6 were synthesized, their electronic absorption spectra in different organic solvents of varying polarities were investigated and their acid dissociation constants in both the ground
Externí odkaz:
https://doaj.org/article/3f6a81d9d81f4782a762199a5cb4b692
Publikováno v:
Molecules, Vol 16, Iss 6, Pp 4937-4957 (2011)
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://doaj.org/article/16e26aa570b748cebd23ad6ffb27d242
Autor:
Laila Mohamed Break1, Mosselhi Abdelnabi Mosselhi2,3 mosselhi2008@hotmail.com, Nagi Mohamed Elshafai4
Publikováno v:
Journal of Chemistry. 2013, p1-11. 11p.
Publikováno v:
Molecules, Vol 17, Iss 7, Pp 8483-8493 (2012)
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=doajarticles::3d47c8f0e3f80d1f9540f783d2aadec1
http://www.mdpi.com/1420-3049/17/7/8483
http://www.mdpi.com/1420-3049/17/7/8483
Publikováno v:
In Bioorganic & Medicinal Chemistry Letters 15 July 2015 25(14):2824-2830
Publikováno v:
Helvetica Chimica Acta. 93:2115-2134
A series of N-substituted 8-aminoxanthines (=8-amino-3,7(or 3,9)-dihydro-1H-purine-2,6-diones) 8–16 and 34–37 were synthesized from the corresponding 8-nitroxanthines 1–7, 30–33, and 8-(phenylazo)xanthines 17 and 18 by catalytic reduction. An
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4f97b6ca6defa0318f6bc6dae3b9f58
https://doi.org/10.1002/hlca.201000254
https://doi.org/10.1002/hlca.201000254
Publikováno v:
Journal of Heterocyclic Chemistry. 30:1221-1228
Xanthine (1) and its N-methyl derivatives 2-16 have been nitrated to the corresponding 8-nitro derivatives 17-32 under different reaction conditions. Nitration in glacial acetic acid with nitric acid works well with the N-7 unsubstituted and some of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9999855524460c408c5e98a20d93d23
https://doi.org/10.1002/jhet.5570300509
https://doi.org/10.1002/jhet.5570300509