Umlagerungen der Phenylthiogruppe in Trimethylsilyl‐enoläthern von α,α‐dialkyl‐α‐phenylthio‐ketonen

Rearrangements of the Phenylthio Group of Trimethylsilyl-enolethers of α,α-Dialkylated α-Phenylthio-ketones Trimethylsilyl-enolethers of α,α-dialkylated α-phenylthio-ketones undergo a photochemically induced 1,3-phenylthio shift leading to isomeric enolethers in high yields. The rearrangement can also be carried out under thermal conditions, but the results are less satisfying.