Novel photochemical reaction of p-benzoquinone derivatives. Transannular addition and quinone ring cleavage in 2,5-(oct-4-eno)-p-benzoquinones {tricyclo[8.2.2]tetradeca-1(13),5,10-triene-12,14-diones}
Abstract
2,5-(Oct-4-eno)-p-benzoquinone (1a) and its derivative (1b) undergo novel photochemical transformation giving quinone ring-cleaved, tricyclic carboxylic acid derivatives (4-A).
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