Tandem [2+1] Cycloaddition-Ring Expansion of Bicyclic Alkenes with Tertiary Propargylic Acetates Catalyzed by Palladium(II)-Coordinated Phosphinous Acid

Abstract

Palladium-SPO complex catalyzed the tandem [2+1] cycloaddition-ring expansion of norbornene derivatives with tertiary propargylic acetates to afford bicyclo[3.2.1]octadienes.

Key words

palladium - secondary phosphine oxides - tertiary propargylic acetate - bicyclic alkene - tandem reaction

References and Notes

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  See ref. 10, 11.

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14

Reaction carried out without Pd(OAc)₂/CyPhP(O)H as a catalytic system did not proceed at all.