觉得有用就下吧
CH2(COOEt)2
(过量)Br2Cl2Cl
22CH2CH2Br
[H]
2OH2OH
C2H5ONa
OH/HOHO
COOH
(2) 酮的乙酰乙酸乙酯合成法
CH3COCH2COOEt
CHONa/EtOH
CH3HO
CH3COCH2R
又如:
CH3COCH2COOEt
CHONa/EtOHC2H5BrCH3
CH32H5
CHONa/EtOHCH3Br
3
CH3COOEt
2H5
HO
CH3CH2CH
3
CH3COCH2COOEt
CHONa/EtOHBr(CH2)4Br
CH32)4Br
CHONa/EtOH
CH3COOEt
H3
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