Polylithium compounds. 8. Synthesis of allenes and acetylenes from perlithiopropyne, trilithiobutyne, and dilithio-3-methylbutyne

W Priester, R West, TL Chwang

Index: Priester,W. et al. Journal of the American Chemical Society, 1976 , vol. 98, p. 8413 - 8421

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Citation Number: 35

Abstract

Abstract: The polylithiation of 1-and 2-butyne to give trilithiobutyne, MeC3Li3, and 3- methylbutyne to give dilithio-3-methylbutyne, MezC3Li2, have been investigated. Reactions of these polymetalated hydrocarbons and the lithiocarbonC3Lid with dialkyl sulfates, chlorosilanes, and chlorogermanes yield polysubstituted allenes and acetylenes, in ratios dependent on the steric size of the derivatizing agents. Reaction of C3Li4 and MezC3Liz ...