73888-55-8
dimethylselenonioindanedionide
+
886-38-4
二苯基环丙烯酮
→
~60%
89671-59-0
3,4-diphenylindeno[1,2-b]pyran-2,5-dione
5508-42-9
2-(dimethyl-λ4-sulfanylidene)indene-1,3-dione
~29%