Results 61 to 70 of about 11,527 (248)

Azirinyl-Substituted Nitrile Oxides: Generation and Use in the Synthesis of Isoxazole Containing Heterocyclic Hybrids

Molecules
The procedure for the generation of azirinyl-substituted nitrile oxides by the reaction of 2-(diazoacetyl)-2H-azirines with tert-butyl nitrite while preserving the azirine ring has been developed.
Alexander S. Dudik, Timur O. Zanakhov, Ekaterina E. Galenko, Mikhail S. Novikov, Alexander F. Khlebnikov   +4 more
doaj   +1 more source

2,3‐Dichloro‐5,6‐Dicyano‐1,4‐Benzoquinone (DDQ)‐Mediated CC Bond Formation: Redox Strategies from Stoichiometric to Catalytic Systems

ChemistryOpen, EarlyView.
2,3‐Dichloro‐5,6‐dicyano‐1,4‐benzoquinone serves as a versatile oxidant and redox catalyst for CC bond formation through hydride abstraction or single‐electron transfer. Stoichiometric and catalytic systems enable benzylic, allylic, and aromatic CH activation under mild, metal‐free conditions, providing sustainable routes to complex and bioactive ...
Dohoon Cha, Sun‐Joon Min
wiley   +1 more source

High yielding synthesis of oxazole-4-carboxylates from dehydroamino acid derivatives : application as fluorescent markers for peptides [PDF]

, 2010
This work was funded by Foundation for Science and Technology (FCT) and FEDER through CQ-UM, National NMR Network (Bruker 400), research project PTDC/QUI/81238/2006 and PhD grant of G.P.
Castanheira, Elisabete M. S., Ferreira, Paula M. T., Monteiro, Luís S., Pereira, Goreti, Vilaça, Helena   +4 more
core  

Synthesis of new beta-amidodehydroaminobutyric acid derivatives and of new tyrosine derivatives using copper catalyzed C-N and C-O coupling reactions [PDF]

, 2012
Several beta-amidodehydroaminobutyric acid derivatives were prepared from N,C-diprotected beta-bromodehydroaminobutyric acids and amides by a copper catalyzed C-N coupling reaction.
Ferreira, Paula M. T., Pereira, Goreti, Vilaça, Helena   +2 more
core   +1 more source

Pseudotetraivprolide aus Pseudomonas entomophila liefern Einblicke in die Biosynthese von Detoxin/Rimosamid‐ähnlichen Anti‐Antibiotika

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Pseudotetraivprolid ist ein neuer Akteur unter den Detoxin/Rimosamid‐ähnlichen Naturstoffen. Die Biosynthese erfordert FabD aus dem Primärstoffwechsel und einen PipDFG‐Komplex für die Acetylierung im letzten Schritt – wodurch schließlich die anti‐antibiotische Wirkung entsteht.
Edna Bode, Julia Büllesbach, Kevin Bauer, Yan‐Ni Shi, Simon Reiners, Ziheng Cui, Petra Happel, Yi‐Ming Shi, Kevin Hoffmann, Peter Grün, Bianca Pommerenke, Uli Kazmaier, Martin Grininger, Helge B. Bode   +13 more
wiley   +1 more source

Iodoaminations of alkenes [PDF]

, 2016
The activation of alkenes and their subsequent functionalization is a frequently used methodology in synthetic chemistry. This review highlights recent iodine-mediated aminations and elaborates on the various strategies to bring about regio- or ...
Mizar, Pushpak, Wirth, Thomas
core   +1 more source

Pseudotetraivprolides from Pseudomonas entomophila Provide Insights into the Biosynthesis of Detoxin/Rimosamide‐Like Anti‐Antibiotics

Angewandte Chemie International Edition, Volume 65, Issue 4, 22 January 2026.
Pseudotetraivprolide is a new player among the Detoxin/Rimosamide‐like natural products! Its biosynthesis requires FabD from primary metabolism and a PipDFG complex for final‐step acetylation – unlocking its anti‐antibotic activity. Abstract Novel variants of known natural product (NP) classes can provide valuable insights into their biosynthesis ...
Edna Bode, Julia Büllesbach, Kevin Bauer, Yan‐Ni Shi, Simon Reiners, Ziheng Cui, Petra Happel, Yi‐Ming Shi, Kevin Hoffmann, Peter Grün, Bianca Pommerenke, Uli Kazmaier, Martin Grininger, Helge B. Bode   +13 more
wiley   +1 more source

sp3–sp3 carbon–carbon bonds formation using 2-alkylazoles and a bromoacrylate as the reaction partners

, 2015
International ...
Bruneau, Christian, Derridj, Fazia, Djebbar, Saffia, Doucet, Henri, Zhao, Liqin   +4 more
core   +2 more sources

Discrimination of roast and ground coffee aroma [PDF]

, 2012
Background: Four analytical approaches were used to evaluate the aroma profile at key stages in roast and ground coffee brew preparation (concentration within the roast and ground coffee and respective coffee brew; concentration in the headspace of the
AM Costa Freitas, AS Franca, C Yeretzian, C Yeretzian, CG Zambonin, E Cantergiani, EA Da Silva, F Mayer, F Ullrich, G Budryn, H Steinhart, I Flament, ID Fisk, ID Fisk, ID Fisk, ID Fisk, J Pawliszyn, M Bröhan, M Korhoňová, N Bhumiratana, N Wang, O Gonzalez-Rios, P Schieberle, P Semmelroch, P Semmelroch, PDC Mancha Agresti, RG Buttery, S Risticevic, W Grosch, W Holscher   +29 more
core   +3 more sources

A Unique Tryptophan C‐Prenyltransferase from the Kawaguchipeptin Biosynthetic Pathway [PDF]

, 2016
Acknowledgements This work was supported by funding of the Academy of Finland (259505), Helsinki University Research grant (490085) and ESCMID grant (4720572) to D.P.F., University of Pittsburgh Central Research Development Fund to X.L., Technology ...
Arnison, Bent, Donia, Donia, Donia, Houssen, Hulvová, Ishida, Ishida, Koehnke, Leikoski, Leikoski, Leikoski, Li, Magnuson, Martin, McIntosh, Shanks, Sivonen, Tsuji, Wallwey, Williams   +21 more
core   +2 more sources