A Fluorogenic 1,3-Dipolar Cycloaddition Reaction of 3-Azidocoumarins and Acetylenes
作者:Krishnamoorthy Sivakumar、Fang Xie、Brandon M. Cash、Su Long、Hannah N. Barnhill、Qian Wang
DOI:10.1021/ol047955x
日期:2004.11.1
Copper(I)-catalyzed 1,3-dipolarcycloadditionreaction of nonfluorescent 3-azidocoumarins and terminal alkynes afforded intense fluorescent 1,2,3-triazole products. The mild condition of this reaction allowed us to construct a large library of pure fluorescent coumarin dyes. Since both azide and alkyne are quite inert to biological systems, this reaction has potential in bioconjugation and bioimaging
Dual Labeling of Biomolecules by Using Click Chemistry: A Sequential Approach
作者:Péter Kele、Gábor Mezö、Daniela Achatz、Otto S. Wolfbeis
DOI:10.1002/anie.200804514
日期:2009.1.2
Click by click: Duallabeling of model compounds was carried out by using copper‐free and copper‐mediated clickchemistry in a sequential manner. This method was used to introduce two labels onto biological targets or nanoparticles, thus quickly converting them into fluorescence resonance energy transfer systems.
Synthesis of 1-Cyanoalkynes and Their Ruthenium(II)-Catalyzed Cycloaddition with Organic Azides to Afford 4-Cyano-1,2,3-triazoles
作者:Peiye Liu、Ronald J. Clark、Lei Zhu
DOI:10.1021/acs.joc.8b00424
日期:2018.5.4
terminal alkynes in the ruthenium(II)-catalyzed regiospecific azide–alkyne cycloaddition to afford 4-cyano-1,2,3-triazoles. A mechanistic proposal different from the one that terminal alkynes adopt under the same reaction conditions is proposed. This work provides a new and convenient two-step sequence to prepare 4-cyano-1,2,3-triazoles from terminal alkynes and organicazides.
Generation of Profluorescent Isoindoline Nitroxides Using Click Chemistry
作者:Jason C. Morris、John C. McMurtrie、Steven E. Bottle、Kathryn E. Fairfull-Smith
DOI:10.1021/jo200613r
日期:2011.6.17
Novel profluorescent nitroxides bearing a triazole linker between the coumarin fluorophore and an isoindolinenitroxide were prepared in good yields using the copper-catalyzed azide–alkyne 1,3-dipolar cycloaddition reaction (CuAAC). Nitroxides containing 7-hydroxy and 7-diethylamino substitution on their coumarin rings displayed significant fluorescence suppression, and upon reaction with methyl radicals
Alkyne Phosphonites for Sequential Azide-Azide Couplings
作者:M. Robert J. Vallée、Lukas M. Artner、Jens Dernedde、Christian P. R. Hackenberger
DOI:10.1002/anie.201302462
日期:2013.9.2
azide–alkyne cycloaddition (CuAAC) and the Staudinger reaction, the two most successful chemoselective reactions for the transformation of azides, leads to a chemical method that allows the sequentialcoupling of two different azido building blocks in high yields. This modular procedure enables a final metal‐free conjugation of functional building blocks to azides.