Canadian journal of chemistry

Formation of quaternary centres via iron allyl cations. Rapid entry into spirocyclic ring systems

MA Charlton, JR Green

文献索引：Charlton, M. Anne; Green, James R. Canadian Journal of Chemistry, 1997 , vol. 75, # 7 p. 965 - 974

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被引用次数: 11

摘要

Ester-substituted allyltetracarbonyliron cations react with cycloalkylidene-type silyl enol ethers, silyl ketene acetals, and β-keto-esters to give 1, 6-dicarbonyl compounds containing a newly formed quaternary centre. Selected condensation products are converted by enolate chemistry into spirocyclic [4.4],[4.5], and [4.6] systems. Acyloin and other reductive cyclization reactions are employed to convert the condensation products into spirocyclic [ ...