Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Bożena Frąckowiak"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 616-620 (2020)
2,3-Butanediacetal derivatives were used for the stereoselective synthesis of unsymmetrically substituted cis-epoxides. The procedure was applied for the preparation of both enantiomers of disparlure and monachalure, the components of the sex pheromo
Externí odkaz:
https://doaj.org/article/2aa5f6299ec946c982e08d34990b3300
Publikováno v:
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 616-620 (2020)
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 616-620 (2020)
2,3-Butanediacetal derivatives were used for the stereoselective synthesis of unsymmetrically substituted cis-epoxides. The procedure was applied for the preparation of both enantiomers of disparlure and monachalure, the components of the sex pheromo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b54fc21f9c9a1f131cc1d48ece9af6c
http://europepmc.org/articles/PMC7136567
http://europepmc.org/articles/PMC7136567
Autor:
Damian Tarasek, Beata Gąsowska-Bajger, Bożena Frąckowiak-Wojtasek, Christian Kersten, Michał Jewgiński, Łukasz Kołodziej, Rafał Latajka, Hubert Wojtasek
Publikováno v:
Journal of Molecular Structure. 1252:132169
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50c83e11e63d961b4b1b5f0b206e83ff
https://doi.org/10.1016/j.molstruc.2021.132169
https://doi.org/10.1016/j.molstruc.2021.132169
Publikováno v:
Tetrahedron Letters. 58:1453-1455
A trans-disubstituted butanediacetal derivative with two different substituents (ester and thioester) – methyl (2R,3R,5R,6R)-3-ethylsulfanylcarbonyl-5,6-dimethoxy-5,6-dimethyl-1,4-dioxane-2-carboxylate, was selectively converted to the cis derivati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ede2a4428b1b4a41eb7fd8fa707cd88b
https://doi.org/10.1016/j.tetlet.2017.02.072
https://doi.org/10.1016/j.tetlet.2017.02.072
Autor:
Bożena Frąckowiak-Wojtasek, Hubert Wojtasek, Daniel Strub, Weronika Wacławczyk-Biedroń, Magdalena Rzechak
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 25:3560-3563
Incubation of the Colorado potato beetle aggregation pheromone, (S)-1,3-dihydroxy-3,7-dimethyl-6-octen-2-one, with antennal or leg extracts from this beetle gave 6-methyl-5-hepten-2-one as the major product. This ketone was used as a substrate in a s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::919b4efc57d3d4be4de5232cd95897c0
https://doi.org/10.1016/j.bmcl.2015.06.083
https://doi.org/10.1016/j.bmcl.2015.06.083
Publikováno v:
Tetrahedron: Asymmetry. 25:1396-1400
The reactions of the lithium enolate of S -ethyl (2 R ,5 R ,6 R )-5,6-dimethoxy-5,6-dimethyl-[1,4]-dioxane-2-carbothioate were investigated in the presence or absence of hexamethylphosphoramide (HMPA). Fluorination gave a single isomer with a much be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2cd05ff5ec5a17f3a96aae0dfcc61d0
https://doi.org/10.1016/j.tetasy.2014.09.011
https://doi.org/10.1016/j.tetasy.2014.09.011
Autor:
Beata Gąsowska-Bajger, Bożena Frąckowiak-Wojtasek, Stanisław Szala, Marieke Logghe, Hubert Wojtasek, Ryszard Smolarczyk, Magdalena Mazurek, Agnieszka Raniszewska, Tomasz Cichoń
Publikováno v:
European Journal of Medicinal Chemistry. 71:98-104
A potential anti-melanoma prodrug containing a phenolic activator, a hydrazine linker, and a nitrogen mustard effector - (N-{4-[bis-(2-chloroethyl)amino]benzoyl}-N'-(4-hydroxybenzyl)hydrazine) has been synthesized in seven steps. Spectrophotometric m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f20e8177cadb17cd8d36bfc307f1398
http://ac.els-cdn.com/S022352341300737X/1-s2.0-S022352341300737X-main.pdf?_tid=a54f9eea-bb04-11e3-8e85-00000aab0f27&acdnat=1396511618_d12e05117e3cfd8c32c7d6b1df853374
http://ac.els-cdn.com/S022352341300737X/1-s2.0-S022352341300737X-main.pdf?_tid=a54f9eea-bb04-11e3-8e85-00000aab0f27&acdnat=1396511618_d12e05117e3cfd8c32c7d6b1df853374
Autor:
Tadeusz Librowski, Jolanta Pękala, Kamila Gajcy, Stanisław Lochyński, Bożena Frąckowiak-Wojtasek
Publikováno v:
Tetrahedron-Asymmetry. 21(16):2015-2020
Several novel cyclopropyl-rigidified γ- and δ-amino acids 3 – 4 have been prepared starting from monoterpene (+)-3-carene 2 . These compounds are proposed as chiral analogues of γ-aminobutyric acid (GABA) 1 and are expected to be of interest as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa88927a510693aee45b31c22e9f8e64
https://doi.org/10.1016/j.tetasy.2010.06.026
https://doi.org/10.1016/j.tetasy.2010.06.026
Autor:
Agata Białońska, Czesław Wawrzeńczyk, Katarzyna Ochalik, Bożena Frąckowiak, Stanisław Lochyński, Zbigniew Ciunik
Publikováno v:
Tetrahedron-Asymmetry. 17(1):124-129
Chiral iodo- 9, bromo- 10 and hydroxylactones 12 condensed with the carane system were obtained. In each case, the synthetic pathway led to an enantiomerically pure diastereoisomer to generate two stereogenic centers. Iodo- 9 and bromolactone 10 poss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ac6d1aac62be34647baf3f74e2cb26c
https://doi.org/10.1016/j.tetasy.2005.11.025
https://doi.org/10.1016/j.tetasy.2005.11.025
Autor:
Agata Białońska, Rafał Latajka, Stanisław Lochyński, Teresa Olejniczak, Zbigniew Ciunik, Bożena Frąckowiak
Publikováno v:
Tetrahedron-Asymmetry. 16(20):3352-3360
Starting from (+)-3-carene 1 several chiral fragrant compounds with the bicyclo[3.1.0]hexane system 4–6 and 10–20 were synthesized. These compounds are structural analogues of naturally occurring fragrant compounds, such as ionones and damascones
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b067b9562bcb88a8b9e06d683c8e96f
https://www.sciencedirect.com/science/article/pii/S0957416605007196?via=ihub#!
https://www.sciencedirect.com/science/article/pii/S0957416605007196?via=ihub#!