反应详情

To a benzene suspension of 194 mg of 80% NaH in mineral oil, a solution of 1.62 g of dimethyl-(2-oxo-octyl)phosphonate in 5 ml of benzene was added dropwise and continually stirred until there was no more evolution of hydrogen. The 1.24 g of N-bromo-caprolactam were added to form the carbanion of dimethyl-(1-bromo-2-oxo-octyl)-phosphonate. After 15 minutes the solution of the aldehyde, prepared as described above, was added and the reaction mixture stirred for 15 minutes.