Modular synthesis of mono, di, and tri-1,4-disubstituted-1,2,3-triazoles through copper-mediated alkyne–azide cycloaddition
摘要:
The synthesis of 1,2,3-triazoles was developed employing sequential copper azide-alkyne cycloaddition, tosylation, sodium azide, and copper azide-alkyne steps. This approach allowed the synthesis of two and three 1,2,3-triazole rings. A preliminary study to gain further insight into the reaction was performed using in situ ReactIR technology. (C) 2011 Elsevier Ltd. All rights reserved.
Some Aspects of the Azide-Alkyne 1,3-Dipolar Cycloaddition Reaction
作者:N. T. Pokhodylo、M. A. Tupychak、O. Ya. Shyyka、M. D. Obushak
DOI:10.1134/s1070428019090082
日期:2019.9
Some peculiar features of two most commonly used catalytic systems (Cul and CuSOVsodium ascorbate) controlling the regioselectivity of 1,3-dipolar cycloaddition of azides to terminal alkynes have been studied. Their potentialities, main disadvantages, and limitations have been demonstrated by a number of examples, including reactions of low-molecular-weight azides and alkynes containing heterocyclic