No abstract

Die Bestrahlung des Dimethylbutens (I) in Gegenwart des Esters (II) in Acetonitril (Filter: in n‐Hexan gelöstes Naphthalin) unter Stickstoff liefert den Äther (III) neben den Alkoholen (IV) und (V).

The irradiation of methyl pyruvate (III) and several methyl-substituted olefins (I) in acetonitrile gives allylic ethers (IV) as well as oxetanes (V) and alcohols (VI), Quenching studies suggest that IV and V are formed from the triplet state of methyl pyruvate, while VI is produced from the excited singlet state.