Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Paulina Grzelak"'
Autor:
Paulina GRZELAK, Andrzej ŻÓŁTOWSKI
Publikováno v:
Combustion Engines, Vol 180, Iss 1, Pp 31-35 (2020)
Many factors, such as climate change and the associated risk of increasing the average temperature on the globe, energy security and the finishing of fossil fuel deposits have caused other renewable energy sources to be sought. Transport, as a branch
Externí odkaz:
https://doaj.org/article/fa619e2a196244889a9396f25bb5fcc1
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 74, Iss 12, Pp 1705-1709 (2018)
The title compounds, C19H21F3O2S and C24H19F3OS, were prepared via chemo- and regioselective [3 + 2]-cycloadditions of the respective thiocarbonyl ylides (thiocarbonyl S-methanides), generated in situ, with (E)-4,4,4-trifluoro-1-phenylbut-2-en-1-one.
Externí odkaz:
https://doaj.org/article/d2d54aca00cb41558a922aec08212618
Autor:
Paulina Grzelak, Sławomir Taubert
Publikováno v:
Energies, Vol 14, Iss 7, p 1916 (2021)
The methodologies for calculating exhaust emissions and fuel consumption, which are given in the normative documents, do not take into account the fact that vehicles equipped with liquefied petroleum gas (LPG) or compressed natural gas (CNG) systems
Externí odkaz:
https://doaj.org/article/443c9a81b0d74fc596fb703ac420c98d
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 576-582 (2015)
Selected hetaryl and aryl thioketones react with acetylenecarboxylates under thermal conditions in the presence of LiClO4 or, alternatively, under high-pressure conditions (5 kbar) at room temperature yielding thiopyran derivatives. The hetero-Diels
Externí odkaz:
https://doaj.org/article/78aab1c2e30346fb98cd77d89cba10a6
Autor:
Sławomir Taubert, Paulina Grzelak
Publikováno v:
Open Engineering, Vol 11, Iss 1, Pp 463-469 (2021)
Vehicles equipped with an LPG retrofit system are always started on gasoline. Therefore, part of the vehicle's annual mileage will be run on gasoline. This article describes the results of tests conducted on a vehicle equipped with a propane-butane g
Publikováno v:
Organic Letters
In this paper, a new cycloaddition between α,β-unsaturated aldehydes and coumalates realized under dienamine activation has been described. The reaction proceeds regioselectively with the distal double bond of the dienamine system acting as electro
Publikováno v:
European Journal of Organic Chemistry. 2019:6592-6596
Publikováno v:
Advanced Synthesis & Catalysis. 361:2274-2279
Publikováno v:
Chemistry of Heterocyclic Compounds. 57:610-610
To the article ''Thia-Diels–Alder reactions of hetaryl thioketones with nonactivated 1,3-dienes leading to 3,6-dihydro-2H-pyrans: evidence for a diradical mechanism'' by Grzegorz Mloston, Paulina Grzelak, Anthony Linden, Heinz Heimgartner
Publikováno v:
Synthesis. 49:2129-2137
Fluorinated nitrile imines generated in situ from the corresponding fluoral-derived hydrazonoyl bromides smoothly react with monomeric aryl/hetaryl-substituted thiochalcones yielding 2,3-dihydro-1,3,4-thiadiazoles in a chemo- and regioselective manne