Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Barbara Zaleska"'
Publikováno v:
ARKIVOC, Vol 2007, Iss 6, Pp 64-74 (2006)
Externí odkaz:
https://doaj.org/article/e958819ba5c54983ab58839daa18c206
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 3, Pp o599-o600 (2008)
The title compound, C19H16N4O2·0.425CH4O, crystallizes with two formula units per asymmetric unit. Researching its crystal structure constitutes part of a study of the nature of interactions between the N+—O− group and the vicinal NH group. The
Externí odkaz:
https://doaj.org/article/be0d1cd13e864ee99be43425a8dc0616
Autor:
Agnieszka Bogdanowicz, Kaja Szwarczyńska, Sonia Barbara Zaleska, Tomasz Kulczyk, Barbara Biedziak
Publikováno v:
Journal of Clinical Medicine. 12:3206
We described an 11-year follow-up of a patient with a non-syndrome multiple supernumerary teeth who had one extra tooth in the maxilla and four additional premolars in the mandible. Together with an additional distal migration of the second lower rig
Publikováno v:
Synthesis. 2010:1654-1658
New heterocyclic systems of pyrimido[1,2- D][1,4]diazepine, [1,4]diazepino[7,1- B]quinazoline, and [1,4]diazepino[1,7- A][1,3]diazepinewere obtained in specific reactions of DMAD with zwitterionic compounds.
Publikováno v:
Tetrahedron Letters. 46:5511-5514
A simple, efficient and diastereoselective route to 2,3,6-trisubstituted 2,3-dihydro-4-pyridones from methyl 3,5-dioxohexanoate, aryl aldehydes and ammonium acetate is described.
Publikováno v:
Synthesis. 2005:2946-2950
Perhydropyrimidin-2-ylium and perhydro-1,3-diazepin- 2 -ylium iodides with linked 1,3-oxathiolane ring were obtained. These new. water-soluble derivatives of 1,3-oxathiolane were prepared by cyclocondensation of diiodomethane with appropriate zwitter
Publikováno v:
Synthesis. :2559-2563
New convenient methods for the synthesis of 1,2,3-thiadiazole, 1,3,4-thiadiazine, and 1,2,5-triazepine derivatives are reported. In the heterocyclization process, the reactivity of 1-thia-4-aza-1,3-butadiene system of syn-2-phenylhydrazono-3-oxothiob
Publikováno v:
The Journal of Organic Chemistry. 67:4526-4529
An unusual rearrangement following cyclization of 2-anilino-2-ethoxy-3-oxothiobutanoic acid with aliphatic 1,3- as well as 1,4-diamine leads to zwitterionic derivatives of 2-hydroxypropanoic acid. Moreover, with aromatic 1,2-diamines, fused heterocyc
Autor:
Barbara Zaleska, Marcin Karelus
Publikováno v:
Synlett. 2002:1831-1834
The reaction of various isocyanates or thiophosgene with zwitterionic pyrimidinylium and 1,3-diazepinylium derivatives has led to the formation of unusually substituted [1,3]oxazolo[3,4-α]pyrimidines and novel heterocyclic system such as [1,3]oxazo-
Autor:
S. Lis, Barbara Zaleska
Publikováno v:
Synthesis. 2001:0811-0827