The Photoproduct Derived from 9-Cyanodibenzobarrelene

The structure of the photoproduct derived from 9-cyano-11,12-dibenzoyl-9,10-dihydro-9,10-ethenoanthracene has been unambiguously established as 8b-cyano-8c,8d-dibenzoyl-4b,8b,8c,8d-tetrahydrodibenzo[a,f]cyclopropa[c,d] pentalene, C₃₁H₁₉NO₂, through X-ray crystallographic analysis.

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