Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Stanislaw Ostrowski"'
Publikováno v:
ARKIVOC, Vol 2000, Iss 6, Pp 905-908 (2000)
Externí odkaz:
https://doaj.org/article/340ed5fa3a914db9827b0dab283715aa
Autor:
Stanislaw Ostrowski
Publikováno v:
Molecules, Vol 4, Iss 10, Pp 287-309 (1999)
Synthesis of purines and purine mono-1-oxides from the respective 5-substituted 4-nitroimidazole derivatives is described. The commercially available 4-nitroimidazole, in a few simple steps (including Vicarious Nucleophilic Substitution of Hydrogen),
Externí odkaz:
https://doaj.org/article/a6b9b6399ab843bc9f3f1f14f816435c
Autor:
Agnieszka Mikus, Stanislaw Ostrowski
Publikováno v:
Molbank, Vol 2003, Iss 3, p M329 (2003)
n/a
Externí odkaz:
https://doaj.org/article/fc5489f0165748e38fc39c9c42a7fa75
Publikováno v:
PRZEMYSŁ CHEMICZNY. 1:91-94
Polypeptides produced by hydrolysis of collagen from minced animal hide and skin scraps were studied by mass spectrometry (MS) in conjunction with electrophoresis to det. their mol. mass. The degree of peptides ionisation was ca 50+. This allowed for
Publikováno v:
New Journal of Chemistry. 40:9899-9902
A convenient method for the preparation of very attractive and almost unknown lutetium(III)–porphyrins was developed. Systematic investigations involving a broad spectrum of solvents (DMF, TCB, imidazole, sulfolane, and a CHCl3/MeOH mixture), as we
Publikováno v:
Tetrahedron Letters. 58:2011-2013
The novel synthesis of nitro-porphyrin aldehydes via vicarious nucleophilic substitution of hydrogen in the corresponding nitro- meso -tetraphenylphyrinates (Zn II , Cu II ) with haloform carbanions, followed by hydrolysis of the introduced dihalomet
Publikováno v:
Polish journal of pathology : official journal of the Polish Society of Pathologists. 68(4)
President of prewar Lvov and Polish Republic on Exile, associate professor Stanisław Ostrowski was a dermatologist with a keen interest in dermatopathology. This study was based on original resources, which - mainly reports of his own authorship - w
Autor:
Zbigniew Pakulski, Sławomir Jarosz, Anna Osuch-Kwiatkowska, Przemyslaw Wyrebek, Stanislaw Ostrowski
Publikováno v:
Journal of Porphyrins and Phthalocyanines. 17:384-391
The synthesis of porphyrins conjugated with sugar moieties is described. meso-Aminophenyl-substituted and β-amino-substituted porphyrin derivatives reacted with benzyl protected glucuronic acid leading to gluco-conjugated hybrids, which after reduct
Publikováno v:
Bulletin of the Chemical Society of Japan. 85:1167-1174
meso-Tetrakis(pentafluorophenyl)porphyrin reacts at higher temperature with unstable iminonitriles (R–C≡N+–N−–Ar), affording pyrazoline-fused chlorins, according to dipolar [3 + 2]-cycloaddition pa...
Publikováno v:
Synthetic Communications. 41:3703-3713
A practical and proecological improvement for synthesis of meso-tetraphenylporphyrin (meso-TPP) under microwave irradiation is described. A cyclocondensation reaction of benzaldehyde and pyrrole followed by oxidation of the porphyrinogen formed as an