A highly active and reusable copper(<scp>i</scp>)-tren catalyst for the “click” 1,3-dipolar cycloaddition of azides and alkynes
作者:Nicolas Candelon、Dominique Lastécouères、Abdou Khadri Diallo、Jaime Ruiz Aranzaes、Didier Astruc、Jean-Marc Vincent
DOI:10.1039/b716306a
日期:——
The copper(I) complex [Cu(C18(6)tren)]Br 1 (C18(6)tren = tris(2-dioctadecylaminoethyl)amine) which exhibits a good stability towards aerobic conditions is a versatile, highly reactive and recyclable catalyst for the Huisgen cycloaddition of azides with terminal or internal alkynes and is a useful catalyst for the preparation of "click" dendrimers.
The Efficient Copper(I) (Hexabenzyl)tren Catalyst and Dendritic Analogues for Green “Click” Reactions between Azides and Alkynes in Organic Solvent and in Water: Positive Dendritic Effects and Monometallic Mechanism
作者:Liyuan Liang、Jaime Ruiz、Didier Astruc
DOI:10.1002/adsc.201100449
日期:2011.12
An easily synthesized, copper(I) (hexabenzyl)tren complex 1 is an efficient catalyst for the copper(I)-catalyzed Huisgen-type 1,3-cycloaddition between azides and alkynes (CuAAC) reaction in toluene. Alternatively, a convenient procedure involves mixing copper(I) bromide (CuBr) with hexabenzyltren and the substrates in toluene which gives, for instance, 100% yield of triazole in 10 min using 0.1 equiv