283156-19-4
→
~92%
19978-32-6
3-溴-2H-吡喃-2-酮
137776-72-8
3,5-二溴-5,6-二氢-2H-吡喃-2-酮
~77%
~41%
+
19978-33-7
5-溴-2H-吡喃-2-酮
3040-20-8
2-oxopyran-3-carboxylic acid
~40%
283156-10-5
283156-05-8
35436-57-8
2-hydroxy-2H-pyran-5-one
60249-17-4
6-甲氧基-2,6-二氢-3H-吡喃-3-酮
53646-72-3
104184-64-7
3-溴-5,6-二氢-2H-吡喃-2-酮
3393-45-1
5,6-二氢-2H-吡喃-2-酮
504-31-4
2H-吡喃-2-酮