21045-82-9
prop-2-enyl 2-chloro-3-oxobutanoate
+
2028-74-2
4-chlorobenzenediazonium,chloride
→
61363-98-2
prop-2-enyl 2-chloro-2-[(4-chlorophenyl)hydrazinylidene]acetate
1118-84-9
乙酰乙酸烯丙酯
61364-03-2
2-(4-chlorophenyl)-3a,4-dihydro-3H-furo[3,4-c]pyrazol-6-one