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Org Lett. 2005 Nov 10;7(23):5249-52.

Copper-catalyzed hydrostannation of activated alkynes.

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1
Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China.

Abstract

[reactions: see text] [(Ph3P)CuH]6 effectively catalyzes the hydrostannation of activated alkynes with exclusive regioselectivity for alpha-stannation. Syn hydrostannation is observed exclusively for alkynoates. Anti or syn hydrostannation adducts are obtained as products for alkynone substrates.

PMID:
16268550
DOI:
10.1021/ol052129p
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