解:
CH3CHCH3BrKOH醇CH3CH=CH2Cl2高温CH2CH=CH2ClCl2CCl4CH2ClCHCH2ClCl
(2)
CH3CH3C=CH2CH3
解: H3CBr2FeH3COHBrMg纯醚H3CMgBr(1) (CH3)2C=O(2) H2O/H+
CH3CCH3H2SO4?CH3C=CH2 CH3CH3CH32CuLi或:H3CBr2FeH3CBrCH2=CCH3C=CH2 CH3(3) CH3CH=CH2CH2CH=CH2
BrMgBr解: CHCH=CHNBS32h?CH2CH=CH2CH2CH=CH2
(4) CHCHC2H5CCCH=CH2
CuCl-NH4Cl解:2CHCHCHCCH=CH2Na液NH3NaCCCH=CH2
CH3CH2BrC2H5CCCH=CH2
CHCHH2lindlarCH2CH2HBrCH3CH2Br
O(5) CHCH2Na液NH3HH5C2CCC2H5H
Na/液NH3解:CHCHNaCCNaCF3CO3H2CH3CH2BrC2H5CCC2H5C2H5H
C2H5HHC=CC2H5OHH5C2CC
(6)
CH2DCH3HCl
ClCH3解:
CH2Mg纯醚MgClCH3D2ODCH3
(十一) 在下列各组化合物中,选择能满足各题具体要求者,并说明理由。
(1) 下列哪一个化合物与KOH醇溶液反应,释放出F
-
(A)
CH2NO2F (B)
O2NCH3F
解:(B) 。 -NO2的吸电子共轭效应使对位氟的活性大增。 (2) 下列哪一个化合物在乙醇水溶液中放置,能形成酸性溶液 (A)
C(CH3)2Br (B) (CH3)2CH+
Br
解:(A) 。 苄基型C-X键活性远远大于苯基型(苄基型C具有特殊的稳定性)。 (3) 下列哪一个与KNH2在液氨中反应,生成两种产物
Br(A)
CH3 (B)
CH3 (C)
CH3CH3BrCH3Br CH3解:(B) 。
HBrHCH3KNH2CH3CH3(I)+CH3CH3(II)
CH3(- HBr)CH3CH3CH3NH2-CH3+H2N
H2NCH3CH3CH3液NH3CH3+H2NCH3H2NCH3CH3CH3NH2-液NH3CH3H2NCH3+H2NCH3CH3
(十二) 由1-溴丙烷制备下列化合物:
(1) 异丙醇
OH解:CHCHCHBr322KOH醇CH3CH=CH2H2SO4H2OCH3CHCH3
(2) 1,1,2,2-四溴丙烷 解:CHCHCHBr322KOH醇Br2/CCl4BrBr
CH3CH=CH22Br2CCl4CH3CHCH2BrBrCH3CCH
BrBrNaNH2?(3) 2-溴丙烯
CH3CCH解:由(2)题得到的 CH3C(4) 2-己炔 解:CH3CH2CH2BrKOH醇CHHBrBrCH3C=CH2
Br2/CCl4NaNH2?CH3CH2CH2BrCH3CCH [参见(2)]
CH3CCHNa液NH3CH3CC-Na+CH3CCCH2CH2CH3
(5) 2-溴-2-碘丙烷
解:CH3CH2CH2BrKOH醇Br2/CCl4NaNH2?CH3CCH [参见(2)]
CH3CCHHBrBrCH3C=CH2HIBrCH3CCH3
I(十三) 由指定原料合成:
(1)
CH3CH=CH2CH2CH2CH2NBSh?
HBr过氧化物解:CH3CH=CH2BrCH2CH=CH2Zn?BrCH2CH2CH2Br
CH2CH2CH2
(2)
CH3CH3CH3CH=CH22HBrCH3CHCHCH3BrZn?解:
CH3CH3CH3CHCHCH32 CH3CH=CH22 CH3CHCH3
(3) C2H5Br解:C2H5Br+CHCH3CH2CH=CH2
CNaC2H5CCHH2lindlarCH3CH2CH=CH2
C2H5(4)
C2H5
O解:
CH3CClAlCl3 ,C6H5NO2COCH3Zn-HgHClCH2CH3
C2H5
BrBr2FeC2H5CH2CH3Cu?