Tandem [2+1] cycloaddition-ring expansion of bicyclic alkenes with tertiary propargylic acetates catalyzed by palladium(II)-coordinated phosphinous acid.

[摘要]：Palladium-secondary phosphine oxide complex catalyzed the tandem [2+1] cycloaddn.-ring expansion of norbornene derivs. with tertiary propargylic acetates to afford bicyclo[3.2.1]octadienes.

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