109-92-2
乙烯基乙醚
+
63777-01-5
2,5-diphenyl-4-(propan-2-ylidene)-2,4-dihydro-3H-pyrazol-3-one
→
63777-05-9
6-ethoxy-4,4-dimethyl-1,3-diphenyl-5,6-dihydropyrano[2,3-c]pyrazole