反应详情

The procedure is as described in Example 1, except that 54 g of sodium methylate in 600 ml dimethylcarbonate are used and 154.5 g of p-chloro-acetophenone are added dropwise over a period of 2.5 hours at 60°C. Working up in accordance with Example 1 gives at 60°C 187 g (87% of the theoretical amount) of p-chloro-benzoylacetic acid methyl ester with a boiling point of 113°C/0.3 torr.