Some alkylations of 2-methylcyclopentane-1,3-dione
Abstract
The alkylation of 2-methylcyclopentane-1,3-dione (A) with 2-(1-naphthyl)ethyl bromide gives only the O-alkylation product. Mixtures of C- and O-alkyl derivatives are obtained with (A) when phenacyl or 1-naphthacyl bromide is employed. The C- to O-alkyl ratio is lower with (A) than with the homologous diketone 2-methyl-cyclohexane-1,3-dione; a possible explanation for this difference is advanced.