反应详情

温度

45 °C

A mixture of 4-nitroanthranilic acid (9.11 g), triphosgene (4.92 g) and tetrahydrofuran (240 ml) was stirred for 10 hours at 45° C. The precipitated solids were collected by filtration, washed with tetrahydrofuran, and then dried to obtain the target product (700 g).

1. filtrationThe precipitated solids were collected by filtration
2. washwashed with tetrahydrofuran
3. customdried