Results 21 to 30 of about 18,930 (288)

Mn(iii)-Catalyzed Radical Reactions of 1,3-Dicarbonyl Compounds and Cyclopropanols with Vinyl Azides for Divergent Synthesis of Azaheterocycles

CHIMIA, 2012
Mn(iii)-catalyzed formal [3+2]- and [3+3]-annulations have been developed using readily available vinyl azides with 1,3-dicarbonyl compounds and cyclopropanols.
Shunsuke Chiba
doaj   +1 more source

Multistep flow synthesis of vinyl azides and their use in the copper-catalyzed Huisgen-type cycloaddition under inductive-heating conditions

Beilstein Journal of Organic Chemistry, 2011
The multistep flow synthesis of vinyl azides and their application in the synthesis of vinyltriazoles is reported. The synthesis relies on a stable polymer-bound equivalent of iodine azide that serves to carry out 1,2-functionalization of alkenes in a ...
Lukas Kupracz, Jan Hartwig, Jens Wegner, Sascha Ceylan, Andreas Kirschning   +4 more
doaj   +1 more source

Synthesis and Properties of 6-Aryl-4-azidocinnolines and 6-Aryl-4-(1,2,3-1H-triazol-1-yl)cinnolines

Molecules, 2019
An efficient approach towards the synthesis of 6-aryl-4-azidocinnolines was developed with the aim of exploring the photophysical properties of 6-aryl-4-azidocinnolines and their click reaction products with alkynes, 6-aryl-4-(1,2,3-1H-triazol-1-yl ...
Natalia A. Danilkina, Nina S. Bukhtiiarova, Anastasia I. Govdi, Anna A. Vasileva, Andrey M. Rumyantsev, Artemii A. Volkov, Nikita I. Sharaev, Alexey V. Povolotskiy, Irina A. Boyarskaya, Ilya V. Kornyakov, Polina V. Tokareva, Irina A. Balova   +11 more
doaj   +1 more source

Design and synthesis of a bis-macrocyclic host and guests as building blocks for small molecular knots

Beilstein Journal of Organic Chemistry, 2020
The thread–link–cut (TLC) approach has previously shown promise as a novel method to synthesize molecular knots. The modular second-generation approach to small trefoil knots described herein involves electrostatic interactions between an electron-rich ...
Elizabeth A. Margolis, Rebecca J. Keyes, Stephen D. Lockey IV, Edward E. Fenlon   +3 more
doaj   +1 more source

Regioselective One-Pot Synthesis, Biological Activity and Molecular Docking Studies of Novel Conjugates N-(p-Aryltriazolyl)-1,5-benzodiazepin-2-ones as Potent Antibacterial and Antifungal Agents

Molecules, 2022
Novel 1,2,3-triazolo-linked-1,5-benzodiazepinones were designed and synthesized via a Cu(I)-catalyzed 1,3-dipolar alkyne-azide coupling reaction (CuAAC).
Asma Nsira, Hasan Mtiraoui, Sami Chniti, Hanan Al-Ghulikah, Rafik Gharbi, Moncef Msaddek   +5 more
doaj   +1 more source

TMSBr-Promoted Cascade Cyclization of ortho-Propynol Phenyl Azides for the Synthesis of 4-Bromo Quinolines and Its Applications

Molecules, 2019
Difficult-to-access 4-bromo quinolines are constructed directly from easily prepared ortho-propynol phenyl azides using TMSBr as acid-promoter. The cascade transformation performs smoothly to generate desired products in moderate to excellent yields with
Fengyan Jin, Tao Yang, Xian-Rong Song, Jiang Bai, Ruchun Yang, Haixin Ding, Qiang Xiao   +6 more
doaj   +1 more source

Chemoselectivity of Tertiary Azides in Strain‐Promoted Alkyne‐Azide Cycloadditions [PDF]

Chemistry – A European Journal, 2018
AbstractThe strain‐promoted alkyne‐azide cycloaddition (SPAAC) is the most commonly employed bioorthogonal reaction with applications in a broad range of fields. Over the years, several different cyclooctyne derivatives have been developed and investigated in regard to their reactivity in SPAAC reactions with azides.
Dennis Svatunek, Nicole Houszka, Trevor A. Hamlin, F. Matthias Bickelhaupt, Hannes Mikula   +4 more
openaire   +5 more sources

Redox reaction between benzyl azides and aryl azides: concerted synthesis of aryl nitriles and anilines

, 2019
A unique and novel reaction between benzyl azides and aryl azides is described to synthesize aryl nitriles and anilines concurrently, which is catalyzed with a photoactivated diruthenium complex.
Kim, Y, Park, J., RHEE, YOUNG HO
core   +1 more source

Synthesis and Characterization of Azido- and Nitratoalkyl Nitropyrazoles as Potential Melt-Cast Explosives

Molecules, 2023
Desirable advancements in the field of explosive materials include the development of novel melt-castable compounds with melting points ranging from 80 to 110 °C.
Elena Reinhardt, Tobias Lenz, Lukas Bauer, Jörg Stierstorfer, Thomas M. Klapötke   +4 more
doaj   +1 more source

Triazol-substituted titanocenes by strain-driven 1,3-dipolar cycloadditions

Beilstein Journal of Organic Chemistry, 2014
An operationally simple, convenient, and mild strategy for the synthesis of triazole-substituted titanocenes via strain-driven 1,3-dipolar cycloadditions between azide-functionalized titanocenes and cyclooctyne has been developed.
Andreas Gansäuer, Andreas Okkel, Lukas Schwach, Laura Wagner, Anja Selig, Aram Prokop   +5 more
doaj   +1 more source