40418-44-8
BETA-丙内酯
→
~77%
168295-33-8
反式,反式-5-溴-2,4-戊二醛
~48%
168295-34-9
+
139261-77-1
2,4-Pentadienal, 5-hydroxy-, potassium salt
42824-16-8
pyridine-SO3 complex