Michal Barbasiewicz
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Explore the profile of Michal Barbasiewicz including associated specialties, affiliations and a list of published articles.
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23
Citations
63
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Recent Articles
1.
Kopyt M, Tryniszewski M, Barbasiewicz M, Kwiatkowski P
Org Lett
. 2023 Sep;
25(37):6818-6822.
PMID: 37655810
Application of high-pressure conditions enables enantioselective Michael-type addition of dialkyl malonates to β-arylethenesulfonyl fluorides. The reaction is efficiently catalyzed with 5 mol % of tertiary amino-thiourea at 9 kbar. Chiral...
2.
Barbasiewicz M, Fedorynski M, Loska R, Makosza M
Molecules
. 2023 May;
28(10).
PMID: 37241756
The aim of this essay is to disclose the similarity of a great variety of reactions that proceed between nucleophiles and π-electrophiles-both aromatic and aliphatic. These reactions proceed via initial...
3.
Tryniszewski M, Basiak D, Barbasiewicz M
Org Lett
. 2022 Jun;
24(23):4270-4274.
PMID: 35653711
Methanedisulfonyl fluoride, CH(SOF), transforms aromatic aldehydes into β-arylethenesulfonyl fluorides, useful substrates for the SuFEx "click"-type transformations. The reaction mimics mechanism of the Horner-Wadsworth-Emmons olefination, which runs via addition of the...
4.
Antoniak D, Paluba B, Basak T, Blaziak K, Barbasiewicz M
Chemistry
. 2022 May;
28(46):e202201153.
PMID: 35638747
Alkylation of nitroarenes via Vicarious Nucleophilic Substitution (VNS) was tested experimentally and modelled with DFT calculations. Mechanistic studies reveal intrinsic differences between reactions of archetypal carbanion precursor PhSO CH Cl,...
5.
Antoniak D, Barbasiewicz M
Org Lett
. 2022 Jan;
24(2):516-519.
PMID: 34978826
Electrophilic nitropyridines react with sulfonyl-stabilized carbanions to give products of C-H alkylation via vicarious nucleophilic substitution. The process consists of formation of the Meisenheimer-type adduct followed by base-induced β-elimination of...
6.
Antoniak D, Barbasiewicz M
Org Lett
. 2019 Nov;
21(23):9320-9325.
PMID: 31710231
Nitronaphthalene derivatives react as Michael acceptors in the Corey-Chaykovsky reaction with alkyl phenyl selenones and alkyl diphenyl sulfonium salts. Mechanistic studies reveal that sterically demanding substituents at the carbanionic center...
7.
Durka K, Gorski B, Blocki K, Urban M, Wozniak K, Barbasiewicz M, et al.
J Phys Chem A
. 2019 Sep;
123(40):8674-8689.
PMID: 31518123
A series of five bis(salicylaldehydes), including four isomeric compounds based on a benzene scaffold and a closely related naphthalene derivative, were investigated in order to elucidate the impact of resonance...
8.
Gorski B, Basiak D, Grzesinski L, Barbasiewicz M
Org Biomol Chem
. 2019 Aug;
17(33):7660-7663.
PMID: 31364653
The reduction of the carbonyl group in acylated trifluoroethyl alkanesulfonates follows the Felkin-Ahn selectivity, and the so-formed diastereomeric β-hydroxysulfonyl intermediates undergo syn- and anti-fragmentation, depending on the reaction conditions. In...
9.
Fiedler T, Barbasiewicz M, Stollenz M, Gladysz J
Beilstein J Org Chem
. 2018 Sep;
14:2354-2365.
PMID: 30254700
Two routes to the title compounds are evaluated. First, a ca. 0.01 M CHCl solution of HB·P((CH)CH=CH) (·BH) is treated with 5 mol % of Grubbs' first generation catalyst (0...
10.
Gorski B, Talko A, Basak T, Barbasiewicz M
Org Lett
. 2017 Mar;
19(7):1756-1759.
PMID: 28300408
Carbanions of alkanesulfonyl halides and esters react with nonenolizable carbonyl compounds to give olefins. Mechanistic studies reveal that initial aldol-type addition of the carbanions is followed by cyclization-fragmentation to alkenes,...