Sulfuryl chloride → Methyl 2-chloro-3-oxo-3-(p-methoxyphenyl)propionate

関与物質

反応手順

131 g of the methyl 3-oxo-3-(p-methoxyphenyl)propionate obtained in the above (1) was dissolved in 1.3 l of tetrachloromethane, and to the solution was added dropwise 85 g of sulfuryl chloride at 45° to 50° C. over 1 hour. After the dropwise addition, the mixture was stirred at the same temperature for 1 hour, cooled, washed with water and dried. Subsequently, the oily product of the residue obtained by evaporation of the solvent was distilled under reduced pressure to obtain 140 g of methyl 2-chloro-3-oxo-3-(p-methoxyphenyl)propionate.

情報源と証拠