1-(6-Bromo-1-oxohex-2-enyl)-5-(1,3-dioxolan-2-yl)-2,6,6-trimethylcyclohex-1-ene

(E)-6-bromo-1-(5-(1-hydroxyallyl)-2,6,6-trimethylcyclohex-1-en-1-yl)hex-2-en-1-ol