A.RMgX+(①HC(OEt)3,②H+/H2O)
B.RCH2OH+CrO3/H2SO4蒸馏
C.RCH=CHR+(①O3,②H2O/Zn)
D.RCOCl+H2/Pt
A.PhCHO
B.CH3CHO
C.PhCOCH3
D.CH3COCH3
A.CHCl=CHCl
B.CH2=CCl2
C.1-戊烯
D.2-甲基-2-丁烯