Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Anna Wrona-Piotrowicz"'
Autor:
Magdalena Ciechańska, Anna Wrona-Piotrowicz, Karolina Koprowska, Anna Makal, Janusz Zakrzewski
Publikováno v:
Molecules, Vol 27, Iss 12, p 3930 (2022)
In this paper, we describe the lithiation of N-benzylpyrene-1-carboxamide with RLi-TMEDA. We found that the reaction outcome strongly depends on the electrophile used in the quenching step. The electrophile can be introduced at either the benzylic po
Externí odkaz:
https://doaj.org/article/af47ce1516fe4cfbbd52bb449a8bd33f
Publikováno v:
Molecules, Vol 27, Iss 4, p 1272 (2022)
The triflic-acid-promoted cyclization of 1-phenyl-3-(pyren-1-yl)-1H-pyrazole-4-carbaldehyde afforded a mixture of 9-phenyl-7,9-dihydropyreno (10,1-fg)indazole and 9-phenylpyreno(10,1-fg)indazole-7(9H)-one, readily separable by column chromatography.
Externí odkaz:
https://doaj.org/article/1dfef79cac464c11a4b15b8bccdf28ff
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 13, Iss 1, Pp 1032-1038 (2017)
It has been found that 2,7-di-tert-butylpyrene reacts with aliphatic iso(thio)cyanates in the presence of trifluoromethanesulfonic acid to exclusively afford the corresponding 1-substituted (thio)amides in high yields. For aromatic iso(thio)cyanates
Externí odkaz:
https://doaj.org/article/5979c6717cf949e1b1cea4a69303f187
Autor:
Jarosław Lewkowski, Maria Rodriguez Moya, Anna Wrona-Piotrowicz, Janusz Zakrzewski, Renata Kontek, Gabriela Gajek
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 1229-1235 (2016)
A large series of variously substituted amino(pyren-1-yl)methylphosphonic acid derivatives was synthesized using a modified aza-Pudovik reaction in 20–97% yields. The fluorescence properties of the obtained compounds were investigated revealing tha
Externí odkaz:
https://doaj.org/article/fe7d25f54bbc4abe90e6be90fb06f137
Autor:
Anna Wrona-Piotrowicz, Janusz Zakrzewski, Anna Gajda, Tadeusz Gajda, Anna Makal, Arnaud Brosseau, Rémi Métivier
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 2451-2458 (2015)
Friedel–Crafts-type reaction of pyrene with diethyl 1-(isothiocyanato)alkylphosphonates promoted by trifluoromethanosulfonic acid afforded diethyl 1-(pyrene-1-carbothioamido)alkylphosphonates in 83–94% yield. These compounds were transformed, in
Externí odkaz:
https://doaj.org/article/b07c656602984d4cb5ba0b527c515c74
Autor:
Laurent Michely, Arnaud Brosseau, Yuichi Hirai, Anna Makal, Davy-Louis Versace, Janusz Zakrzewski, Anna Wrona-Piotrowicz, Lucie Laize-Générat, Clémence Allain, Rémi Métivier
Publikováno v:
ChemPhysChem
ChemPhysChem, Wiley-VCH Verlag, 2021, 22 (15), pp.1638-1644. ⟨10.1002/cphc.202100294⟩
ChemPhysChem, Wiley-VCH Verlag, 2021, 22 (15), pp.1638-1644. ⟨10.1002/cphc.202100294⟩
International audience; A series of acetyl pyrenes and pyrenyl ynones with and without tert-butyl groups showed distinct mechanofluorochromism (MFC). Four pairs of polymorphic solids were found out of six compounds and interestingly, each of them sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9690b02ae03c13736ea39ce9b515013
https://doi.org/10.1002/cphc.202100294
https://doi.org/10.1002/cphc.202100294
Publikováno v:
The Journal of Organic Chemistry
Triflic acid-promoted 1-adamantylation and tert-butylation of pyrene at positions 2 and 2,7 along with the synthesis of compounds having one-, two-, and three-pyrenyl groups attached to the adamantane scaffold are disclosed. Fluorescent properties of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cce83c59e995c22848805ebed50cfbdc
https://doi.org/10.1021/acs.joc.0c01060
https://doi.org/10.1021/acs.joc.0c01060
Publikováno v:
ARKIVOC, Vol 2012, Iss 6, Pp 412-420 (2012)
Externí odkaz:
https://doaj.org/article/d46348dba6704fc681289f81c859a7ac
Publikováno v:
Dyes and Pigments. 160:923-929
N-Ethoxycarbonylpyrene- and perylene thioamides were used as building blocks in the synthesis of a variety of fluorescent dyes bearing thioimidate, 4-hydroxythiazolyl, 4-methoxythiazolyl and thiazole-4-one moieties, and an ester function. The synthes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05fcccfb7abfe1825fcd49324c189dbf
https://doi.org/10.1016/j.dyepig.2018.09.016
https://doi.org/10.1016/j.dyepig.2018.09.016
Publikováno v:
CrystEngComm. 21:5845-5852
Structures of three polymorphs of 1-acetylpyrene were determined using single-crystal X-ray diffraction and their solid state luminescence was investigated. While the formerly known 1AP-α polymorph, with its herringbone packing motif, is proved to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a449d1f1ec4628df40bdb10c16441b40
https://doi.org/10.1039/c9ce01203f
https://doi.org/10.1039/c9ce01203f