1. Hydrolysis and acetolysis of 8-bromo-1-hydroxydi-isophor-2(7)-en-3-one yields both epimeric forms of the corresponding 4-hydroxy and 4-acetoxy-compounds, probably by a mechanism involving a bimolecular (SN2′′) displacement.

Die Hydrolyse und Acetolyse des 8-Brom-1-hydroxydi-isophor-2(7)-en-3-ons führt unerwartet, anscheinend über einen bimolekularen (SN2′′) Mechanismus, zu epimeren 40Hydroxy- order 4-Acetoxy-Verbindungen.