Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Emilia Obijalska"'
Publikováno v:
ARKIVOC, Vol 2017, Iss 2, Pp 59-67 (2016)
Externí odkaz:
https://doaj.org/article/4a661d97dd07449e8e3392117e116a3c
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 1873-1880 (2013)
Light-induced cyclization of several substituted 2-(2-fluorophenylazo)azines in the presence of Ca2+ ions to the corresponding triazinium derivatives is investigated experimentally and computationally. The azo derivatives of 4-methylpyridine 4 underg
Externí odkaz:
https://doaj.org/article/fb342c793e424da8bd60f8e2ba38067c
Autor:
Emilia Obijalska, Anna Pietrzak, Christos P. Constantinides, Roger D. Sommer, Piotr Kaszyński
Publikováno v:
Chemical Communications. 59:4008-4011
The anion derived from the “super stable” Blatter radical is unstable and transforms to two main products via a novel mechanism.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87530a261a91f625b713cbc2b8ece713
https://doi.org/10.1039/d3cc00832k
https://doi.org/10.1039/d3cc00832k
Autor:
Grzegorz Mlostoń, Małgorzata Celeda, Heinz Heimgartner, Damian Duda, Emilia Obijalska, Marcin Jasiński
Publikováno v:
Catalysts; Volume 12; Issue 6; Pages: 589
Synthetically relevant 2-unsubstituted imidazole N-oxides were obtained by using the ball-milling mechanochemical method. The presented approach extended the scope of the known method and enabled the preparation of hitherto little known N(1)-aryl-sub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23dba08f58a13c48e52c2199e93c888d
Autor:
Grzegorz Mlostoń, Heinz Heimgartner, Magdalena Błaszczyk, Marcin K. Kowalski, Emilia Obijalska
Publikováno v:
Journal of Fluorine Chemistry. 220:35-40
A Lewis acid catalyzed reaction of trifluoroacetyldiazomethane (CF3COCHN2) with thiourea occurs in boiling THF solution in the presence of BF3·OEt2 yielding 2-amino-4-trifluoromethyl-1,3-thiazole in a fair yield. Analogous reactions with aromatic th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69d528e2a40ea76f4e2e9de06dda4836
https://doi.org/10.1016/j.jfluchem.2019.02.003
https://doi.org/10.1016/j.jfluchem.2019.02.003
Autor:
Heinz Heimgartner, Emilia Obijalska, Grzegorz Mlostoń, Damiano Tanini, Maria Pawelec, Antonella Capperucci
Publikováno v:
European Journal of Organic Chemistry. 2018:3716-3723
Isomeric fluorinated α‐bromoenones react with dinucleophilic β‐mercaptoalcohols in CH2Cl2 at room temperature in the presence of Et3N in a multistep process. Depending on the position of the CF3 group, different O,S‐heterocycles or non‐cycl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55b055f25601ca2acafbec770221be0f
https://doi.org/10.1002/ejoc.201701752
https://doi.org/10.1002/ejoc.201701752
Publikováno v:
Journal of Fluorine Chemistry. 200:102-108
The ‘in situ’ generated 1,1,1-trifluorodiazoethane reacts with thioketones as C=S dipolarophiles in a two-phase system (DCM/H2O) at room temperature to yield trifluoromethylated 2,5-dihydro-1,3,4-thiadiazoles. Whereas stable crystalline products
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::038c84e72ffd4b4c90b073ebeec541f8
https://doi.org/10.1016/j.jfluchem.2017.06.009
https://doi.org/10.1016/j.jfluchem.2017.06.009
Publikováno v:
Journal of Fluorine Chemistry. 199:92-96
Fluorinated acetonitrile oxides, generated from the corresponding hydroximoyl bromides in the presence of aryl, hetaryl, ferrocenyl, and cycloaliphatic thioketones, undergo efficient [3 + 2]-cycloadditions to give 3-fluoroalkylated 1,4,2-oxathiazoles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d898a65c05d478db3db82df9f5dec143
https://doi.org/10.1016/j.jfluchem.2017.04.011
https://doi.org/10.1016/j.jfluchem.2017.04.011
Publikováno v:
ARKIVOC, Vol 2017, Iss 2, Pp 59-67 (2016)
Dedicated to Prof. Jacek Młochowski on the occasion of his 80th birthday. The easily available diethyl ethynylphosphonate reacts with diverse aldonitrones under Kinugasa reaction conditions at room temperature, providing 3‐phosphonylated β‐lact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281cdc2fd9955f1c4e459e3e10980c90
https://doi.org/10.3998/ark.5550190.p009.660
https://doi.org/10.3998/ark.5550190.p009.660
Autor:
Marcin K. Kowalski, Emilia Obijalska
Publikováno v:
Chemistry of Heterocyclic Compounds. 53:846-848
Although first synthesis of 1,2,4-benzotriazine was performed at the end of 19th century still new methods for their preparation are developed. This microreview combines recent (2006–2017) information on the strategies used for the synthesis of 1,2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86bc4ac8a1d47ec135ac9e07892734dd
https://doi.org/10.1007/s10593-017-2134-5
https://doi.org/10.1007/s10593-017-2134-5