反应详情

温度

0 °C

A mixture of cyclopropanecarboxylic acid hydrazide (1.6 g, 16 mmol) in 5% aqueous sodium hydroxide (50 mL) was cooled to 0° C. with stirring and a solution of 5,6-dichloronicotinoyl chloride (3.1 g, 14.8 mmol) in dimethoxyethane (10 mL) added over 20 minutes. This was stirred at room temperature overnight, acidified to pH 3-4 with 1N hydrochloric acid and filtered. The resulting tan solid was dried to give the desired product (1.4 g, 35%).

1. stirringThis was stirred at room temperature overnight
2. filtrationfiltered
3. customThe resulting tan solid was dried