New Olefination of Acetals with TMSCH2Cu(PBu3) · LiI under the Influence of BF3 · OEt2

Takeshi Suzuki; Takeshi Oriyama

doi:10.1055/s-2000-6728

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Synlett 2000; 2000(6): 0859-0861
DOI: 10.1055/s-2000-6728

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New Olefination of Acetals with TMSCH₂Cu(PBu₃) · LiI under the Influence of BF₃ · OEt₂

Takeshi Suzuki^* , Takeshi Oriyama

^*Faculty of Science, Ibaraki University, Bunkyo, Mito 310-8512, Japan

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Publikationsdatum:
31. Dezember 2000 (online)

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Peterson-type olefination of acetals can be conveniently performed by reaction with TMSCH₂Cu(PBu₃)LiI, which is prepared in-situ from TMSCH₂Li, BuI and PBu₃, under the influence of BF₃ · OEt₂ via Lewis acid-promoted β-elimination of β-alkoxysilanes.

olefination - acetals - TMSCH₂Cu(PBu₃) · LiI - BF₃ · OEt₂