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A Monolithiated and Its Related 1,3-Dilithiated Allylsilane:  Syntheses, Crystal Structures, and Reactivity

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journal contribution
posted on 28.06.2006, 00:00 by Carsten Strohmann, Klaus Lehmen, Stefan Dilsky
Treatment of Me2Si(CH2CHCH2)(CH2NC5H10) with 1 or 2 equiv of t-BuLi afforded the mono- or dilithiated allylsilanes, which crystallize as a tetramer and a hexamer from pentane. The product selectivity in trapping reactions is influenced by the ability of both the solvent and the electrophile to coordinate the lithium center.