4.4 Article

Palladium-catalyzed hydrostannylations of highly hindered acetylenes in hexane

Journal

TETRAHEDRON LETTERS
Volume 44, Issue 30, Pages 5737-5739

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(03)01327-3

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Hexane is particularly favorable as a solvent for hydrostannylation of hindered internal alkynes by minimizing the competing formation of H-2 and Bu3SnSnBu3. The optimum conditions involve Pd(OAc), and a donor monophosphine (PCy3) in hexane at 23degreesC. (C) 2003 Elsevier Ltd. All rights reserved.

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