A CH3COOCH=CH2
B CH3COO C6H4 CH3 （对位的,下同）
C CH3CHO
D CH3COOH
E CH3 C6H4 OH
F CH3 C6H10 OH
C→D CH3CHO+2Cu(OH)2+NaOH→CH3COONa+Cu2O+3H2O
F→G 消去反应,脱一分子水
有机推断题通常羟基与烯键碳原子相连接时,易发生下列转化：碳碳双键上连接羟基时容易转化为碳碳单键连酮基 现有如下转化关系：
A CH3COOCH=CH2
B CH3COO C6H4 CH3 （对位的,下同）
C CH3CHO
D CH3COOH
E CH3 C6H4 OH
F CH3 C6H10 OH
C→D CH3CHO+2Cu(OH)2+NaOH→CH3COONa+Cu2O+3H2O
F→G 消去反应,脱一分子水