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Tetrahedron letters

A novel synthesis of unsaturated spiro compounds based on reactions of bifunctional organometallic reagents.

P Canonne, R Boulanger, P Angers

文献索引:Canonne, Persephone; Poulanger, Raynald; Angers, Paul Tetrahedron Letters, 1991 , vol. 32, # 42 p. 5861 - 5864

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被引用次数: 21

摘要

Abstract Z-allylic dibromides regio-and stereoselectively prepared were reacted with the sodium enolate of ethyl acetoacetate or di (α-ethoxyvinyl) cuprate to yield, after hydrolysis, and decarboxylation in the case where the enolate of ethylacetoacetate was the nucleophile, the corresponding ketones. After reduction and bromination, the products were converted into the appropriate organometallic compounds and reacted with selected ...