Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Elena Stanoeva"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 1456-1464 (2020)
The Castagnoli–Cushman reaction of 3,4-dihydroisoquinolines with glutaric anhydride, its oxygen and sulfur analogues was investigated as a one-step approach to the benzo[a]quinolizidine system and its heterocyclic analogs. An extension towards the
Externí odkaz:
https://doaj.org/article/4002362a8de54046a8b2669e74f10a9c
The reaction between 1-aryl-3,4-dihydroisoquinolines and monocyclic anhydrides was studied for the first time. The method is the first one-step route to previously unknown angularly-aryl substituted racemic [1,4]thiazino[3,4-a]isoquinoline derivative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::185bb8f567b117f7ab27b6d1e3d28d3e
Autor:
Kristina A. Kostadinova, Diana H. Dimitrova, Elena Stanoeva, Tsveta Stoyanova, Nikola Burdzhiev, Todor I. Baramov, Stanislav Yanev
Publikováno v:
Chemical Papers. 73:1263-1277
The reaction of homophthalic anhydride with 1H-indol-3-carbaldimines was used for the preparation of trans- and cis-2-alkyl-3-indolyl-1-oxotetrahydroisoquinolin-4-carboxylic acids 3a–d. The stereochemistry of the reaction was investigated by means
Publikováno v:
Journal of Heterocyclic Chemistry. 52:130-135
The reaction of 1-[ω-(N-acylated amino)alkyl]-3,4-dihydroisoquinolines (7a, 7b, 7c, 7d, 7e) with homophthalic anhydride (1) leads to the formation of 8-oxo-13a-[(N-acylated amino)alkyl]-8H-dibenzo[a,g]quinolizine-13-carboxylic acids (8a–e) with pr
Publikováno v:
ChemInform. 47
Autor:
Elena Stanoeva, Nikola Burdzhiev
Publikováno v:
Comptes Rendus Chimie. 13:1443-1449
Substituted (±)-trans-1-benzyl-6-oxo-2-phenylpiperidine-3-carboxamides (type I) and the acylated derivatives of (±)-trans-5-amino-1-benzyl-6-phenylpiperidin-2-one (type II) were prepared by the reaction of (±)-trans-1-benzyl-6-oxo-2-phenylpiperidi
Publikováno v:
Spectroscopy Letters. 43:22-27
The spectral properties of a tautomeric Schiff base containing aza-15-crown-5 moiety, namely N-((4-methylnaphthalen-1-yl)methylene)-4-(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)aniline on addition of alkali and alkaline earth metal ions were inve
Autor:
Elena Stanoeva, Nikola Burdzhiev
Publikováno v:
Zeitschrift für Naturforschung B. 63:313-320
The reaction of succinic anhydride and N-benzylidene-benzylamine gave rise to the corresponding substituted trans-5-oxopyrrolidine-3-carboxylic acid, which was transformed stereoselectively into two series of compounds. The first one consists of carb
Autor:
Aileen R. Smith, Emanuil Karanov, Vera Alexieva, Iskren Sergiev, Michael A. Hall, Dessislava Todorova, Elena Stanoeva, V. Lachkova, M. Somleva
Publikováno v:
Biologia plantarum. 51:377-380
Cytokinins N6-benzyladenine (BA) and 1-(2-chloropyridin-4-yl)-3-phenylurea (4PU-30) delayed the senescence of detached leaves (3rd to 7th leaf node) of wild and ethylene insensitive eti5 mutant of Arabidopsis thaliana. The novel anticytokinins, struc
Publikováno v:
ChemInform. 46
Reaction of dihydroisoquinolines (I) with homophthalic anhydride (II) results in the diastereoselective formation of cis-dibenzoquinolizinecarboxylic acids (III).