Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Elham A. Al-Taifi"'
Autor:
Elham A. Al-Taifi, Islam S. Marae, Yasser A. El-Ossaily, Shaaban K. Mohamed, Joel T. Mague, Mehmet Akkurt, Etify A. Bakhite
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 78, Iss 2, Pp 220-224 (2022)
In the title molecule, C25H28N2O5S, (alternative name ethyl 2-{[7-acetyl-4-cyano-6-hydroxy-8-(4-methoxyphenyl)-1,6-dimethyl-5,6,7,8-tetrahydroisoquinolin-3-yl]sulfanyl}acetate) the 4-methoxyphenyl group is disposed on one side of the bicyclic core an
Externí odkaz:
https://doaj.org/article/1b3135dd48184df2a685a5639e2b0ca3
Autor:
Shaaban K. Mohamed, Joel T. Mague, Mehmet Akkurt, Mustafa R. Albayati, Sahar M. I. Elgarhy, Elham A. Al-Taifi
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 242-246 (2021)
The conformation about the central benzene ring in the molecule of (I), C20H19N3O2, is partially determined by an intramolecular N—H...O hydrogen bond. In the crystal, chains parallel to the c axis are generated by intermolecular N—H...O hydrogen
Externí odkaz:
https://doaj.org/article/ef3894652a0f473e879cd0070553f28b
Autor:
Shaaban K. Mohamed, Joel T. Mague, Mehmet Akkurt, Farouq E. Hawaiz, Sahar M. I. Elgarhy, Elham A. Al-Taifi
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 3, Pp 266-269 (2021)
In the crystal, the molecule of the title compound, C26H20N2O3, has crystallographically imposed twofold rotation symmetry. The crystal packing consists of layers parallel to the ab plane formed by O—H...N and C—H...O hydrogen bonds. Between the
Externí odkaz:
https://doaj.org/article/7cbd3ea4049146f9adebe5ec3bea7d8d
Autor:
Elham A. Al-Taifi, Islam S. Maraei, Etify A. Bakhite, Güneş Demirtas, Joel. T. Mague, Shaaban K. Mohamed, Youssef Ramli
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 77, Iss 2, Pp 121-125 (2021)
In the title molecule, C28H27N3O3S, the heterocyclic portion of the tetrahydroisoquinoline unit is planar and an intramolecular N—H...N hydrogen bond and a C—H...π(ring) interaction help to determine the overall conformation. In the crystal, a l
Externí odkaz:
https://doaj.org/article/881c8719b7de413fa8c2b3217c9cfd0c
Autor:
Shaban A. A. Abdel-Raheem, Adel M. Kamal El-Dean, Mokhtar A. Abd ul-Malik, Aly A. Abd-Ella, Elham A. Al-Taifi, Reda Hassanien, Mohamed E. A. El-Sayed, Shaaban K. Mohamed, Sameh A. Zawam, Etify A. Bakhite
Publikováno v:
Current Chemistry Letters, Vol 10, Iss 4, Pp 337-362 (2021)
Different methods for the synthesis of pyridine derivatives as well as the chemical reactivity profiles and structures of these substances are reviewed. The utility of these compounds as precursors is emphasized in the synthesis of many heterocycles
Externí odkaz:
https://doaj.org/article/b79c759f5c5245cf879e16473d7dac95
Publikováno v:
ARKIVOC, Vol 2019, Iss 6, Pp 446-458 (2020)
Externí odkaz:
https://doaj.org/article/17cb47822cd049bba323c14740371f8f
Publikováno v:
IUCrData, Vol 2, Iss 12, p x171700 (2017)
The asymmetric unit of the title compound, C18H15N3O2S, comprises two independent molecules, which differ primarily in the orientations of the acetyl and p-anisyl substituents, each being rotated in opposite directions from the mean plane of the pyri
Externí odkaz:
https://doaj.org/article/287e9d914c184175b482da28e1e0201b
Publikováno v:
Arabian Journal of Chemistry, Vol 7, Iss 6, Pp 936-946 (2014)
3-Cyano-6-(2-thienyl)-4-trifluoromethylpyridine-2(1H)-one (1) and its thiono analog 2 were prepared by the reaction of (2-thenoyl)-ω,ω,ω-trifluoroacetone with cyanoacetamide or cyanothioacetamide, respectively. Interaction of compound 1 with ethyl
Externí odkaz:
https://doaj.org/article/9f4dfb43cf0549f1828324219dc3760e
Publikováno v:
IUCrData, Vol 2, Iss 11, p x171650 (2017)
In the title molecule, C19H17N3O3S, the bicyclic core is planar [maximum deviation = 0.0205 (1) Å] In the crystal, the molecules stack along the a-axis direction through π–π-stacking interactions between the bicyclic units with a small alternati
Externí odkaz:
https://doaj.org/article/efc1de7c2b61492ba97663555343f05f
Publikováno v:
IUCrData, Vol 2, Iss 6, p x170868 (2017)
In the title compound, C23H23ClN2O4S, the 4-chlorophenyl ring is inclined to the pyridine ring of the isoquinoline group by 71.86 (13)°. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers, which stack
Externí odkaz:
https://doaj.org/article/c2cdcf7abc1843579d6f61f36416adc3