CIDNP detection of the transient 4-benzylcyclohexa-2,5-dienone in the photorearrangement of benzyl phenyl ether
Abstract
The photolysis of benzyl phenyl ether gives rise to CIDNP in the intermediate 4-benzylcyclohexa-2,5-dienone; this rearranges to 4-benzylphenol to which polarisation is transferred in the presence of acid.