反应详情

Prepared according to the procedure described in Example 1 using 3,5-dibromo-4-hydroxybenzaldehyde (4.5 g, 16 mmoles), 2-thiohydantoin (1.7 g, 15 mmoles), sodium acetate (4.5 g, 55 mmoles), and acetic acid (35 ml). Recrystallization from ethanol gave the pure product (1.4 g), mp 267° C. (dec).

1. customPrepared
2. customRecrystallization from ethanol