Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Luise Schefzig"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 2898-2905 (2016)
Iodination of carbohydrate-derived 3,6-dihydro-2H-1,2-oxazines of type 3 using iodine and pyridine in DMF furnished 5-iodo-substituted 1,2-oxazine derivatives 4 with high efficacy. The alkenyl iodide moiety of 1,2-oxazine derivatives syn-4 and anti-4
Externí odkaz:
https://doaj.org/article/4c2f19f7609c4ba6990482580b32ed56
Autor:
Mrinal K. Bera, Reinhold Zimmer, Max Gart, Stefan Leisering, Luise Schefzig, Giaime Rancan, Timon Kurzawa, Hans-Ulrich Reissig, Igor Linder
Publikováno v:
Synthesis. 53:2067-2080
The LANCA three-component reaction of lithiated alkoxyallenes (LA), nitriles (N), and carboxylic acids (CA) smoothly provides β-alkoxy-β-ketoenamides in broad structural variety. The subsequent cyclocondensation of these compounds with hydroxylam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::590a0b64c3dc5730e30bd92e90214442
https://doi.org/10.1055/s-0040-1706020
https://doi.org/10.1055/s-0040-1706020
Autor:
Steffen Thierbach, Christina Graf, Luise Schefzig, Eckart Rühl, Maurice Taszarek, Xin Gong, Doreen Mollenhauer, Hans-Ulrich Reissig, B. Wassermann
Publikováno v:
Langmuir. 35:8667-8680
The adsorption thermodynamics of 4-(dimethylamino)pyridine (DMAP) and its five divalent derivatives di-DMAP- n (2 ≤ n ≤ 6) with gradually increasing methylene-spacer lengths n binding to planar gold surfaces has been studied by surface-enhanced R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c3c0e193d6c3820de24785b0f199e5f
https://doi.org/10.1021/acs.langmuir.9b00371
https://doi.org/10.1021/acs.langmuir.9b00371
Publikováno v:
Synthetic Communications. 48:1945-1956
From easily available aminopyran and aminooxepane derivatives and 2,5-bis(trifluoromethyl)phenyl isothiocyanate the corresponding thiourea derivatives were prepared. One compound was further modified by introducing a tertiary amino group. The four ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::611f691d5d6c4f5568e1114075def72d
https://doi.org/10.1080/00397911.2018.1468465
https://doi.org/10.1080/00397911.2018.1468465
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 2898-2905 (2016)
Iodination of carbohydrate-derived 3,6-dihydro-2H-1,2-oxazines of type 3 using iodine and pyridine in DMF furnished 5-iodo-substituted 1,2-oxazine derivatives 4 with high efficacy. The alkenyl iodide moiety of 1,2-oxazine derivatives syn-4 and anti-4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84348ff642cb002f3b9a46a59a64580e
https://doi.org/10.3762/bjoc.12.289
https://doi.org/10.3762/bjoc.12.289
Autor:
Dieter Lentz, Luise Schefzig, Reinhold Zimmer, Tomasz Zukowski, Christoph Bentz, Hans-Ulrich Reissig, Robby Klemme
Publikováno v:
Synthesis. 48:1491-1501
Treatment of α-hydroxy-substituted methoxyallene derivatives with meta-chloroperbenzoic acid provided acyloxy-substituted 1,2-diketones in moderate yields. A mechanism for the formation of these unexpected products is proposed. The configuration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5132f29e2f72cf50c2b4ab9ddd4e7947
https://doi.org/10.1055/s-0035-1561751
https://doi.org/10.1055/s-0035-1561751
Publikováno v:
Synlett. 25:2265-2270
Starting from methyl 2-siloxycyclopropanecarboxylates simple and efficient one-pot procedures are described that lead to β-cyanoesters and methoxycarbonyl-substituted terminal alkynes. The prepared functionalized alkynes were subjected to typical tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96b7458338085969f088be68da1115b7
https://doi.org/10.1055/s-0034-1378370
https://doi.org/10.1055/s-0034-1378370
Autor:
Tomasz Zukowski, Dieter Lentz, Hans-Ulrich Reissig, Christoph Bentz, Robby Klemme, Reinhold Zimmer, Luise Schefzig
Publikováno v:
ChemInform. 47
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e547323dac1a5a154ec3f1bc2698678
https://doi.org/10.1002/chin.201641189
https://doi.org/10.1002/chin.201641189
Autor:
Hans-Ulrich Reissig, Markus Gerhard, Christoph Bentz, Luise Schefzig, Reinhold Zimmer, Igor Linder, Michal Sascha Andrä
Publikováno v:
European Journal of Organic Chemistry. 2011:6070-6077
In this report we describe the synthesis of differentially functionalized pyridine derivatives 3 and the related 3-bromo-substituted pyridines 11. Dissociation of 6H-1,2-oxazine precursors (1a, 1b, 5, 6, or 12) in situ, mediated by boron trifluoride
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c0a8871095afab7544e70375fce5e7b
https://doi.org/10.1002/ejoc.201100765
https://doi.org/10.1002/ejoc.201100765
Publikováno v:
Synthetic Communications. 39:1012-1026
The Mukaiyama aldol reaction of 2-styryl-oxazole-4-carbaldehyde (1) as model substrate with S-ketene silyl acetal 2 catalyzed by poly(ethylene glycol)-supported binaphthyl-derived chiral titanium(IV) complexes afforded the corresponding aldol product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc623e01d3e93103aa69f2102a979cf9
https://doi.org/10.1080/00397910802455080
https://doi.org/10.1080/00397910802455080