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A Tin Hydride Designed To Facilitate Removal Of Tin Species From Products Of Stannane-mediated Radical Reactions.

D. Clive, J. Wang
Published 2002 · Chemistry, Medicine

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The stannane 1, which is simple to prepare, behaves like the conventional reagents Bu3SnH and Ph3SnH in standard free radical reactions, but with the special characteristic that the tin-containing byproducts are easily and very largely removed by mild hydrolysis (LiOH-water-THF or TsOH-water-THF), which converts them into base-soluble (aqueous NaHCO3) materials. The performance of stannane 1 was evaluated for a range of radical reactions involving halides, selenides, Barton-McCombie deoxygenation, and enyne cyclization. In several cases the effectiveness of the workup procedure in removing tin species was monitored by 1H NMR.



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