Zobrazeno 1 - 10
of 193
pro vyhledávání: '"P. T. Perumal"'
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 72, Iss 2, Pp 261-265 (2016)
The title compounds, C19H16ClNO5, (I), and C19H15Cl2NO5, (II), both crystallize in the monoclinic space group P21/n. They differ essentially in the orientation of the methyl acetate group, with the C=O bond directed towards the NO2 group in (I) but a
Externí odkaz:
https://doaj.org/article/b381a5cbf1fd413fbd82d28f9cbc285b
Publikováno v:
IUCrData, Vol 1, Iss 5, p x160724 (2016)
In the title compound, C27H18BrN3O, the indole and central pyrrole ring systems are inclined to one another by 13.15 (15)°. The carbonitrile group is almost coplanar with its attached pyrrole ring, the C[triple-bond]N bond making a dihedral angle of
Externí odkaz:
https://doaj.org/article/0efe6947010c4d3ba019f55117cd609a
Publikováno v:
IUCrData, Vol 1, Iss 4, p x160527 (2016)
In the title compound, C13H10N2O5, the dihedral angle between the pyridine and phenyl ring is 50.47 (2)°. The hydroxyl H and ketone O atoms form an intramolecular O—H...O hydrogen bond with the hydroxyl group almost coplanar with the phenyl ring.
Externí odkaz:
https://doaj.org/article/cb04f2bc6ede4d559feba724d9ac6f06
Publikováno v:
IUCrData, Vol 1, Iss 4, p x160526 (2016)
In the title compound, C30H19N3O, the indole and the naphthalene ring systems are inclined to the central pyrrole ring (r.m.s. deviation = 0.012 Å) by 29.09 (9) and 49.92 (9)°, respectively. The naphthalene ring system and the indole ring are incli
Externí odkaz:
https://doaj.org/article/ccd7fc61b6b242feb6be6dfd0d140bde
Publikováno v:
IUCrData, Vol 1, Iss 4, p x160586 (2016)
In the title compound, C21H13N3O2, the indole and pyridine rings are planar. The pyridine ring is in an antiperiplanar (−ap) orientation with the indole ring system and an antiperiplanar (+ap) orientation with the hydroxyphenyl ring. An intramolecu
Externí odkaz:
https://doaj.org/article/63f987fd563544d7b5632162df1c6161
Publikováno v:
IUCrData, Vol 1, Iss 4, p x160688 (2016)
In the title compound, C22H22N2O2, the two central fused pyridazine rings have screw-boat conformations and the dihedral angle between their mean planes is 36.22 (8)°. The mean plane of the cinnoline ring system makes a dihedral angle of 46.56 (5)°
Externí odkaz:
https://doaj.org/article/191c5b66a828497d99f8b62fece43a23
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 11, Pp o822-o823 (2015)
In the title compound, C22H14ClN3O2, the indole unit is essentially coplanar, with a maximum deviation of 0.035 Å for the C atom bearing the methyl group. The central pyridine ring is inclined to the indole ring system by 43.7 (1)°. The dihedral an
Externí odkaz:
https://doaj.org/article/91fea6d3a5554be89887490499a6f3f8
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 7, Pp o510-o511 (2015)
In the title compound, C18H14N2O2, the six-membered oxazine ring adopts a half-chair conformation and its mean plane makes a dihedral angle of 83.23 (7)° with the pyrrolidine ring of the indoline ring system. In the crystal, molecules are linked via
Externí odkaz:
https://doaj.org/article/b4309e0817f84ab7ae7f33699915609d
Autor:
S. Jaumdally, M. Tomasicchio, A. Pooran, A. Esmail, A. Kotze, S. Meier, L. Wilson, S. Oelofse, C. van der Merwe, A. Roomaney, M. Davids, T. Suliman, R. Joseph, T. Perumal, A. Scott, M. Shaw, W. Preiser, C. Williamson, A. Goga, E. Mayne, G. Gray, P. Moore, A. Sigal, J. Limberis, J. Metcalfe, K. Dheda
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-13 (2024)
Abstract Airborne transmission of SARS-CoV-2 aerosol remains contentious. Importantly, whether cough or breath-generated bioaerosols can harbor viable and replicating virus remains largely unclarified. We performed size-fractionated aerosol sampling
Externí odkaz:
https://doaj.org/article/b344d0804bf94bffabb51e64e2e0eb26
Autor:
P. T. Perumal, S. Thennarasu
Publikováno v:
Molecules, Vol 7, Iss 6, Pp 487-493 (2002)
A convenient four-step method for the preparation of the lipophilic vicinal diamine 1,2-diamino-1-phenylheptane is described. Condensation involving octan-2-one, benzaldehyde and ammonia is reported. Regioselective Schmidt rearrangement of 2,6-diphen
Externí odkaz:
https://doaj.org/article/27a62f065e2f46398a1e5db238ee2eac