Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Renata Siedlecka"'
Publikováno v:
Symmetry, Vol 16, Iss 1, p 104 (2024)
The asymmetric formal [3 + 3] annulation process of (E)-2-(3-phenylacryloyl)pyridine N-oxide with benzyl methyl ketone was investigated. The possibility of a stereoselective outcome was checked using salts of natural amino acids, as well as chiral bi
Externí odkaz:
https://doaj.org/article/3b5ca41601b54646bacb565b63417508
Autor:
Zuzanna Wrzeszcz, Renata Siedlecka
Publikováno v:
Molecules, Vol 25, Iss 2, p 330 (2020)
An increasing interest in the synthesis and use of optically active pyridine N-oxides as chiral controllers for asymmetric reactions has been observed in the last few years. Chiral heteroaromatic N-oxides can work as powerful electron-pair donors, pr
Externí odkaz:
https://doaj.org/article/d86c6e3321ef4a1b9b646d4a0e54e7eb
Autor:
Julia Bąkowicz, Michał K. Cyrański, Arkadiusz Ciesielski, Anna Szczurek, Renata Siedlecka, Ilona Turowska-Tyrk, Krzysztof Konieczny
Publikováno v:
Crystal Growth & Design. 20:5061-5071
The kinetics of the photochemical Norrish-Yang reaction in single crystals was studied using the example of 1,3,5,7-tetraazatricyclo[3.3.1.13,7]decane 4-(2,4,6-triisopropylbenzoyl)benzoate by X-ray...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92c68a92ba67a8f80cf04eaf7b717d59
https://doi.org/10.1021/acs.cgd.0c00245
https://doi.org/10.1021/acs.cgd.0c00245
Autor:
Renata Siedlecka
Publikováno v:
Catalysts. 13:121
The oxyfunctionalization of non-activated C-H bonds has attracted considerable attention for several years. Following the example of enzymatic systems, a multitude of catalytic systems capable of carrying out such a transformation efficiently and sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e774b4a2557525f614c38600f74c7145
https://doi.org/10.3390/catal13010121
https://doi.org/10.3390/catal13010121
Autor:
Zuzanna Wrzeszcz, Renata Siedlecka
Publikováno v:
Catalysts, Vol 11, Iss 444, p 444 (2021)
Catalysts
Volume 11
Issue 4
Catalysts
Volume 11
Issue 4
Interesting properties of N-oxides and pyridine oxazoline compounds have become the starting point to synthesize compounds connecting both groups. A multi-step synthesis of a series of chiral oxazoline substituted pyridine N-oxides, alkyl derived of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b1b9800b1b59a287bc32052f6b120e9
https://www.mdpi.com/2073-4344/11/4/444
https://www.mdpi.com/2073-4344/11/4/444
Publikováno v:
Crystal Growth & Design. 17:1347-1352
The path of the Norrish–Yang reaction of methylammonium 4-(2,4,6-triisopropylbenzoyl)benzoate was studied by means of X-ray structure analysis. The following parameters influenced by this photochemical reaction were monitored: (a) intramolecular di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d60875ee8abb11ee8d3a17c109a04462
https://doi.org/10.1021/acs.cgd.6b01750
https://doi.org/10.1021/acs.cgd.6b01750
Autor:
Zuzanna, Wrzeszcz, Renata, Siedlecka
Publikováno v:
Molecules
An increasing interest in the synthesis and use of optically active pyridine N-oxides as chiral controllers for asymmetric reactions has been observed in the last few years. Chiral heteroaromatic N-oxides can work as powerful electron-pair donors, pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c499cc9d9d9d36d78001fff818dd1d03
https://pubmed.ncbi.nlm.nih.gov/31947566
https://pubmed.ncbi.nlm.nih.gov/31947566
Publikováno v:
Tetrahedron. 72:6678-6683
New cyclic amidines are obtained in a one-step procedure by the palladium-catalyzed reduction of (2-pyridyl)-β-nitriles. The partial hydrogenation of pyridine derivatives takes place under acidic conditions, followed by spontaneous ring closure prom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dee356414612c1b413602e30afa7aeaf
https://doi.org/10.1016/j.tet.2016.08.090
https://doi.org/10.1016/j.tet.2016.08.090
Autor:
Renata Siedlecka
Publikováno v:
Tetrahedron. 69:6331-6363
Resolution methods of racemic or enriched mixtures are continuously exploited and developed, particularly to obtain both enantiomers of chiral compounds. This compilation presents an update on the principal developments of resolution methods covering
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36956d38fa27ddfcb19cd1ec2683c11f
https://doi.org/10.1016/j.tet.2013.05.035
https://doi.org/10.1016/j.tet.2013.05.035
Autor:
Renata Siedlecka, Ilona Turowska-Tyrk
Publikováno v:
Tetrahedron: Asymmetry. 22:1662-1666
An effective deracemization of all trans -1,3-diphenyl-2,4-bis-[α-hydroxybenzyl]-cyclobutane 1 was achieved by the application of the ( R )-(−)- O -acylmandelic acid as a resolving agent, followed by the crystallization of the diastereomeric ester
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31a51a837651af6e4a146eebe624b737
https://doi.org/10.1016/j.tetasy.2011.09.004
https://doi.org/10.1016/j.tetasy.2011.09.004