131543-46-9
alpha-ketodiacetal
+
69272-50-0
3,6-二溴-1,2-苯二胺
→
~99%
148231-12-3
5,8-二溴喹噁啉
95-54-5
1,2-苯二胺
273-13-2
2,1,3-苯并噻二唑
15155-41-6
4,7-二溴-2,1,3-苯并噻二唑