58093-05-3
6.10-二氧杂螺[4.5]十烷-7,9-二酮
+
100-52-7
苯甲醛
→
354532-21-1
8-benzylidene-6,10-dioxaspiro[4.5]decane-7,9-dione
120-92-3
环戊酮