C2H5H3CCOH解：CH3(CH2)2(R)-3-甲基-3-己醇浓HXC2H5H3CCCH3(CH2)2+XXC2H5CCH3(CH2)2CH3
(R)-3-甲基-3-卤代己烷(S)-3-甲基-3-卤代己烷外消旋体(七) 将3-戊醇转变为3-溴戊烷(用两种方法，同时无或有很少有2-溴戊烷)。
解：方法一：
CH3CH2CHCH2CH3OHPBr3CH3CH2CHCH2CH3Br
方法二：
CH3CH2CHCH2CH3OHTsCl吡啶CH3CH2CHCH2CH3OTsKBrCH3CH2CHCH2CH3Br
(八) 用高碘酸分别氧化四个邻二醇，所得氧化产物为下面四种，分别写出四个邻二醇的构造式。
OHOH(1) 只得一个化合物CH3COCH2CH3； CH3CH2CCCH2CH3
CH3CH3(2) 得两个醛CH3CHO和CH3CH2CHO；
OHCH3CHOHCHCH2CH3
OH(3) 得一个醛HCHO和一个酮CH3COCH3； HOCH2CCH3 CH3OHCH3 or
(4) 只得一个含两个羰基的化合物(任举一例)
OHOHOH CH3(九) 用反应机理解释以下反应
Cl(1) CH3CH2CHCH2CH2OHHClZnCl2CH3CH2CCH3CH2CH3+CH3CH2C=CHCH3
CH3CH3解：CH3CH2CHCH2CH2OHH+CH3CH2CHCH2CH2OH2CH3-H2OHCH3CH2CCH2CH2
CH3CH3Cl-氢迁移ClCH3CH2CCH2CH3
CH3CH2CCH2CH3CH3-H+CH3CH3CH3CH2C=CHCH3(2)
(CH3)2CIC(CH3)2OHAg+CH3CH3CCCH3 CH3O解：(CH3)2CC(CH3)2OHAg+CH3(CH3)2CCH3COHCH3甲基迁移 ICH3 (CH3)2CCCH3OH-H+CH3CCCH3
CH3O溶解在H2SO4中(3)
CH2=CHCHCH=CHCH3OH
CH2CH=CHCH=CHCH3+CH2=CHCH=CHCHCH3OH解
H+- H2OOH
：
CH2=CHCHCH=CHCH3OHCH2=CHCHCH=CHCH3OH2CH2=CHCHCH=CHCH3
CH2=CHCHCH=CHCH3CH2CH=CHCH=CHCH3 H2O- H+CH2=CHCH=CHCHCH3 H2O- H+
CH2CH=CHCH=CHCH3OHCH2=CHCH=CHCHCH3OH