2892-63-9
3,4-二氯-3-环丁烯-1,2-二酮
+
121-69-7
N,N-二甲基苯胺
→
~22%
107885-40-5
3-chloro-4-[4-(dimethylamino)phenyl]cyclobut-3-ene-1,2-dione
107885-39-2
3-[4-(dimethylamino)phenyl]-4-hydroxycyclobut-3-ene-1,2-dione