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Org Lett. 2010 Nov 5;12(21):4988-91. doi: 10.1021/ol101990d.

Effects of a flexible alkyl chain on a ligand for CuAAC reaction.

Author information

1
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoutodaigaku-katsura, Nishikyo, Kyoto 615-8510, Japan.

Abstract

Imidazole derivatives substituted by a normal alkyl group are shown to be efficient as a ligand for the copper(Ι)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction. An alkyl chain on the imidazole ligands shows an efficient steric effect and benefits the reaction. Such functionalities of an alkyl chain allow a rapid CuAAC reaction of even a bulky alkyne, which has been difficult to perform under conventional conditions.

PMID:
20879787
DOI:
10.1021/ol101990d

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