Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Alina Bunescu"'
Publikováno v:
Russian Chemical Bulletin. 64:470-472
Autor:
Ashot S. Saghyan, Alexander Villinger, Alina Bunescu, Silke Erfle, Muhammad Sharif, Andranik Petrosyan, Anke Spannenberg, Constantin Mamat, Peter Langer, Tariel V. Ghochikyan, Sebastian Reimann
Publikováno v:
Helvetica Chimica Acta. 96:1955-1967
A variety of 6-(trichloromethyl)salicylates (=2-hydroxy-6-(trichloromethyl)benzoates) were prepared by TiCl4-mediated cyclization of 1,3-bis(trimethylsilyloxy)buta-1,3-dienes with 1,1,1-trichloro-4,4-dimethoxybut-3-en-2-one. The employment of trimeth
Autor:
Peter Langer, A. S. Saghiyan, Renske Klassen, Stefan Büttner, T. H. Tam Dang, Alexander Villinger, Zharylkasyn A. Abilov, Tariel V. Ghochikyan, Sebastian Reimann, Nazken K. Kelzhanova, Anke Spannenberg, Thomas Pundt, Alina Bunescu, Andreas Schmidt, Helmut Reinke
Publikováno v:
Helvetica Chimica Acta. 96:44-58
Functionalized 5-alkyl-3-(trifluoromethyl)phenols were prepared by formal [3+3] cyclization of 1,3-bis(silyloxy)buta-1,3-dienes with 1,1,1-trifluoro-4-(silyloxy)alk-3-en-2-ones derived from 1,1,1-trifluoroalkane-2,4-diones. The latter were prepared b
Autor:
Franziska Bendrath, Alina Bunescu, Lutz Domke, Silke Erfle, Robert Litschko, Peter Langer, Anke Spannenberg, Zharylkasyn A. Abilov, Sebastian Reimann, Alexander Villinger
Publikováno v:
Journal of Fluorine Chemistry. 139:28-45
The TiCl4-mediated [3+3] cyclocondensation of 1,3-bis(silyloxy)-1,3-butadienes with 1-chloro-1,1-difluoro-4,4-dimethoxybut-3-en-2-one or 1,1-difluoro-4,4-dimethoxybut-3-en-2-one afforded CF2Cl- and CF2H-substituted salicylates, respectively. The Me3S
Autor:
Alina Bunescu, Silke Erfle, Zharylkasyn A. Abilov, Peter Langer, Sebastian Reimann, Anke Spannenberg
Publikováno v:
Helvetica Chimica Acta. 95:1037-1047
The TiCl4-mediated [3+3] cyclocondensation of various 1,3-bis(trimethylsilyloxy)buta-1,3-dienes with 1-chloro-1,1-difluoro-4-(trimethylsilyloxy)pent-3-en-2-one provides a regioselective access to novel 6-(chlorodifluoromethyl)salicylates (=6-(chlorod
Autor:
Alina Bunescu, Sergii Dudkin, Viktor O. Iaroshenko, Marcelo Vilches-Herrera, Alexander Villinger, Vyacheslav Ya. Sosnovskikh, Satenik Mkrtchyan, Peter Langer, Friedrich Erben, Ani Hakobyan
Publikováno v:
Tetrahedron. 67:7946-7955
4-Chloro-3-(trifluoroacetyl)- and 4-chloro-3-(methoxalyl)coumarins react with electron-rich aminoheterocycles, dimethyl 1,3-acetonedicarboxylate, hydrazines, alkyl thioglycolates, and methyl sarcosinate to give a variety of 3,4-heteroannulated coumar
Autor:
Lutz Domke, Alina Bunescu, Vyacheslav Ya. Sosnovskikh, Peter Langer, Anke Spannenberg, Dmitri V. Sevenard, Viktor O. Iaroshenko, Alexander Villinger
Publikováno v:
Journal of Fluorine Chemistry. 132:441-449
A formal [3+3] cyclocondensation of 1,3-bis(silyl enol ethers) with the little-known 4,4-dimethylthio-1,1,1-trifluorobut-3-en-2-one was studied. In contrast to 4,4-dimethoxy-1,1,1-trifluorobut-3-en-2-one, this α-oxoketene dithioacetal reacts with 1,
Publikováno v:
The Journal of Organic Chemistry. 74:5002-5010
The TiCl(4)-mediated formal [3 + 3] cyclocondensation of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with 4,4-dimethoxy-1,1,1-trifluorobut-3-en-2-one afforded a variety of functionalized 4-methoxy-6-(trifluoromethyl)salicylates and 3-methoxy-5-(trifluo
Autor:
Alina Bunescu, Jennifer A. Littlechild, Roland Wohlgemuth, C. Sayer, Christopher Bräsen, Bettina Siebers, Verena Kallnik
Publikováno v:
Journal of biotechnology. 190
The phosphotriesterase-like lactonase (PLL) encoded by Vmut_2255 in the hyperthermoacidophilic crenarchaeon Vulcanisaeta moutnovskia (VmutPLL), represents the only hyperthermophilic PLL homologue identified so far in addition to the previously charac
Publikováno v:
Synlett. 2008:1862-1864
The formal [3+3] cyclocondensation of 1,3-bis(trimethylsilyloxy)buta-1,3-dienes with 1,1-bis(methoxy)trifluoromethyl-1-en-3-ones afforded functionalized 3-methoxy-5-(trifluoromethyl)phenols with very good regioselectivity.