4.4 Article

Hydroxyapatite-supported copper(II)-catalyzed azide-allcyne [3+2] cycloaddition with neither reducing agents nor bases in water

Journal

TETRAHEDRON LETTERS
Volume 52, Issue 51, Pages 6916-6918

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.10.060

Keywords

Copper(II)-exchanged hydroxyapatite; Azide-alkyne [3+2] cycloaddition; Reusable heterogeneous catalyst; Environmentally-benign process

Funding

  1. Catalysis Research Center, Hokkaido University [2010-B-24]
  2. Grants-in-Aid for Scientific Research [22350022] Funding Source: KAKEN

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Copper(II)-exchanged hydroxyapatite, prepared by ion-exchanging of Ca(II) in calcium hydroxyapatite [Ca-10(PO4)(6)(OH)(2)] with Cu(NO3)(2) at 70 degrees C in water, functions as a reusable heterogeneous catalyst with neither reducing agents nor bases for azide-alkyne [3+2] cycloaddition at 50 degrees C in water under air. (C) 2011 Elsevier Ltd. All rights reserved.

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