Tetrahedron

Synthesis of spirocyclic acetals by manganic acetate promoted additions to exocyclic enol ethers

JM Mellor, S Mohammed

Index: Mellor, John M.; Mohammed, Shahid Tetrahedron, 1993 , vol. 49, # 34 p. 7567 - 7578

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Citation Number: 13

Abstract

Reaction of β-ketoesters and β-dicarbonyl compounds with manganic acetate in acetic acid gives intermediates, which add to exocyclic enol ethers to afford a variety of interesting spirocyclic acetals. As the exocyclic enol ethers are shown to be readily accessible, the results constitute a useful route based on radical chemistry to the synthesis of unsaturated spiroacetals.