Synthesis 2017; 49(11): 2374-2388
DOI: 10.1055/s-0036-1588981
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© Georg Thieme Verlag Stuttgart · New York

Hexafluorosilicic Acid as a Novel Reagent for the Desilylation of Silylacetylenes: Application in Sequential Sonogashira Coupling and Click Reaction

Ádám Sinai
MTA-ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Pázmány Péter stny. 1/a, 1117 Budapest, Hungary   Email: novakz@elte.hu
,
Ádám Mészáros
MTA-ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Pázmány Péter stny. 1/a, 1117 Budapest, Hungary   Email: novakz@elte.hu
,
Ádám Balogh
MTA-ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Pázmány Péter stny. 1/a, 1117 Budapest, Hungary   Email: novakz@elte.hu
,
Márton Zwillinger
MTA-ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Pázmány Péter stny. 1/a, 1117 Budapest, Hungary   Email: novakz@elte.hu
,
Zoltán Novák*
MTA-ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Pázmány Péter stny. 1/a, 1117 Budapest, Hungary   Email: novakz@elte.hu
› Author Affiliations
Further Information

Publication History

Received: 28 February 2017

Accepted after revision: 03 March 2017

Publication Date:
29 March 2017 (online)


Abstract

Hexafluorosilicic acid was utilized as a novel, cheap, readily available, and environmentally benign alternative reagent for the desilylation of 1-trimethylsilylacetylenes. The applicability of the aqueous solution of the hexafluorosilicic acid was demonstrated in the sequential coupling of aryl halides and ethynyltrimethylsilane to afford internal acetylenes, benzofurans, and triazoles in one-pot Sonogashira–Sonogashira­ and Sonogashira–CuAAC reactions.

Supporting Information