108-31-6
马来酸酐
+
74803-53-5
3-(NN-dimethylamino)methyl-4-hydroxycoumarin
→
~72%
66-76-2
双香豆素
+
35075-35-5
35075-35-5
15059-36-6
4-acetoxy-1H-benzopyran-2-one
+
67-68-5
二甲基亚砜
→
1204686-05-4
2-(2-hydroxybenzoyl)-2-[(methylthio)methyl]-2,3-dihydro-4 H-furo[3,2-c]chromen-4-one
+
3156-95-4
7H-bis[1]benzopyrano[4,3-b:3',4'-c]pyran-6,8-dione