Tetrahedron Letters

An efficient and simple β-acylvinyl anion equivalent for cyclohexenones

C Shih, JS Swenton

Index: Shih, Chuan; Swenton, John S. Tetrahedron Letters, 1981 , vol. 22, # 42 p. 4217 - 4220

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Citation Number: 2

Abstract

Abstract Dilithio species available from treatment of Δ 3, 4 bromocyclohexenone ketals with two equivalents of n-butyllithium serve as one-pot equivalents of β-vinyl-carbanions of cyclohexenones. These former ketals are available in good yield from the corresponding β- bromocyclohexenone by direct ketalization under controlled conditions.