Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Malte, Brasholz"'
Publikováno v:
Organic Letters. 24:8041-8046
Photocatalytic dehydrogenative [2 + 2] cycloadditions between amines and alkenes were developed that allow for the stereoselective and high-yielding synthesis of functionalized azetidines. The oxidative formal Aza Paternò-Büchi reactions are induce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7985139c67bdf8c3bfcbbd2de0e326ab
https://doi.org/10.1021/acs.orglett.2c03291
https://doi.org/10.1021/acs.orglett.2c03291
Publikováno v:
Organic & Biomolecular Chemistry. 21:4379-4381
Lewis acid-catalysed oxa Diels–Alder reactions of unsaturated azepino[1,2-a]indole diones with enol ethers lead to tetracyclic azepane-fused pyrano[3,2-b]indoles, with high stereoselectivity and under mild reaction conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b5139f2096d0e605f6117aeeacdfade
https://doi.org/10.1039/d3ob00234a
https://doi.org/10.1039/d3ob00234a
Autor:
Jennifer N. Andexer, Uwe Beifuss, Malte Brasholz, Rolf Breinbauer, Martin Breugst, Oliver Dumele, Martin Ernst, Ruth Ganardi, Michael Giese, Tobias A. M. Gulder, Wolfgang Hüttel, Stephanie Kath‐Schorr, Karsten Körber, Markus Kordes, Thomas Lindel, Christian Mück‐Lichtenfeld, Jochen Niemeyer, Roland Pfau, Fabian Pfrengle, Jörg Pietruszka, Johannes L. Röckl, Norbert Schaschke, Hanna Sebode, Mathias O. Senge, Bernd F. Straub, Johannes Teichert, Siegfried R. Waldvogel, Thomas Werner, Christian Winter
Publikováno v:
Nachrichten aus der Chemie. 70:42-69
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4232beab1ee6fd140be9f98d155862c7
https://doi.org/10.1002/nadc.20224122453
https://doi.org/10.1002/nadc.20224122453
Publikováno v:
ChemPhotoChem. 5:979-983
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::631961df8a74cabb54c2a4c986786da1
https://doi.org/10.1002/cptc.202100226
https://doi.org/10.1002/cptc.202100226
Autor:
Alexander Villinger, Mario Frahm, Lisa Marie Gronbach, Dirk Michalik, Malte Brasholz, Alice Voss, Jonas Bresien
Publikováno v:
Organic Letters. 23:7834-7838
The tricyclic azepino[1,2-a]indole acetates 7, readily accessible by visible-light-driven catalytic photooxygenation of cyclohepta[b]indoles 1, are convenient precursors to novel and uncommon cyclic C,N-diacyliminium ions 3. We report here the first
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e800af56e00f73051cbae900039678f
https://doi.org/10.1021/acs.orglett.1c02857
https://doi.org/10.1021/acs.orglett.1c02857
Publikováno v:
Chemical Communications. 58:5467-5469
A short synthesis of the Kopsia alkaloid (±)-mersicarpine is enabled by the visible light-driven photooxygenation of a tetrahydrocarbazole, generating a perhydropyrido[1,2-a]indole dione as the immediate precursor to the natural product.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43e1536031fca5cd8f7790049340428a
https://doi.org/10.1039/d2cc01316a
https://doi.org/10.1039/d2cc01316a
Autor:
Jan Paradies, Jennifer Andexer, Uwe Beifuss, Florian Beuerle, Malte Brasholz, Rolf Breinbauer, Martin Ernst, Ruth Ganardi, Tobias A. M. Gulder, Wolfgang Hüttel, Stephanie Kath‐Schorr, Karsten Körber, Markus Kordes, Matthias Lehmann, Thomas Lindel, Burkhard Luy, Christian Mück‐Lichtenfeld, Claudia Muhle‐Goll, Jochen Niemeyer, Roland Pfau, Jörg Pietruszka, Johannes L. Röckl, Norbert Schaschke, Mathias O. Senge, Bernd F. Straub, Siegfried R. Waldvogel, Thomas Werner, Daniel B. Werz, Christian Winter
Publikováno v:
Nachrichten aus der Chemie. 69:38-68
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aa6079519f4d10a65159c9373617177
https://doi.org/10.1002/nadc.20214105947
https://doi.org/10.1002/nadc.20214105947
Publikováno v:
Organic & Biomolecular Chemistry. 19:1626-1631
Biomass-derived 5-chloromethylfurfural (CMF), a congener of the well-known carbohydrate-based platform chemical 5-hydroxymethylfurfural (HMF), can efficiently be functionalised by radical transformations of its benzylic chloromethyl group. We report
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::079e1fd14516d131f545c4197de9ceb9
https://doi.org/10.1039/d1ob00013f
https://doi.org/10.1039/d1ob00013f
Autor:
Annika Eichhorst, Malte Gallhof, Alice Voss, Anett Sekora, Leon Eggers, Le Thi Huyen, Christian Junghanss, Hugo Murua Escobar, Malte Brasholz
Publikováno v:
ChemMedChem. 17(14)
Spirooxindole-1,3-oxazines are a small and structurally unique class of spirooxindole alkaloids. To date, only four of these compounds have been isolated from natural sources, and their biological properties remained unknown thus far. Dioxyreserpine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfe793fe07525ce6151ff54dec2e51b6
https://pubmed.ncbi.nlm.nih.gov/35491398
https://pubmed.ncbi.nlm.nih.gov/35491398
Autor:
Jonas Bresien, Alice Voss, Frank Hoffmann, Lisa Marie Gronbach, Mario Frahm, Malte Brasholz, Thorsten von Drathen, Alexander Villinger, Felix Lorenz
Publikováno v:
Angewandte Chemie (International Ed. in English)
Tetrahydrocarbazoles and perhydrocyclohepta[b]indoles undergo a catalytic cascade singlet oxygenation in alkaline medium, which leads to chiral tricyclic perhydropyrido‐ and perhydroazepino[1,2‐a]indoles in a single operation. These photooxygenat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c390e5fba619944e799b43a8a76c970
https://doi.org/10.1002/ange.202007549
https://doi.org/10.1002/ange.202007549