Magnetically Recoverable N-Heterocyclic Carbene–Gold(I) Catalyst for Hydroamination of Terminal Alkynes

Abstract We prepared a magnetically recoverable gold(I) catalyst by immobilizing an N-heterocyclic carbene–gold(I) complex on magnetite and applied it to the hydroamination of alkynes. By employing 2 mol% of the magnetite-supported gold(I) catalyst, the hydroamination of terminal alkynes proceeded s...

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Bibliographic Details
Published in:Synlett 2016-08, Vol.27 (13), p.1941-1944
Main Authors: Fujita, Ken-ichi, Fujii, Akira, Sato, Junichi, Yasuda, Hiroyuki
Format: Article
Language:English
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Summary:Abstract We prepared a magnetically recoverable gold(I) catalyst by immobilizing an N-heterocyclic carbene–gold(I) complex on magnetite and applied it to the hydroamination of alkynes. By employing 2 mol% of the magnetite-supported gold(I) catalyst, the hydroamination of terminal alkynes proceeded smoothly to provide the corresponding imine in a fair chemical yield. Moreover, after the reaction, the magnetic gold(I) catalyst was readily recovered by use of an external magnet and could be reused up to five times.
ISSN:0936-5214
1437-2096
DOI:10.1055/s-0035-1562134