反应详情

Methanol (70 mL) was added dropwise under stirring at 0° C. to thionyl chloride (23.4 mL), and azetidine-3-carboxylic acid (CAS No. 36476-78-5, 25 g) was added, followed by stirring at room temperature for 2 hours. The reaction solution was concentrated, to thereby obtain the title compound (36 g) having the following physical properties.

1. addition36476-78-5, 25 g) was added
2. concentrationThe reaction solution was concentrated