1 部分习题参考答案 2 -1 (5) 顺-1,2-二溴环己烷 (6) 1,7,7-三甲基二环[2
1]庚烷 (7) 5-甲基螺[3
4]辛烷 (8)(9)CCCCCH3CH3 CH3CH3H3H3(10)(CH3)2CHCH2CH2CH3(11) 2 -4 (3)>(2)>(5)>(1)>(4) 2 -6 (1) 正丙基(n-Pr-) (2) 异丙基(i-Pr-) (3) 异丁基(i-Bu -) (4) 叔丁基(t-Bu -) (5)甲基(Me-) (6) 乙基(Et-) 2 -7 (3) CH3CH2CH(CH3) 2 (4) (CH3)4C 2 -8 (3)、(6)等同;(2)、(5)构造异构;(1)、(4) 构象异构 2 -9 (1) 用Br2
因氢原子活性有差异,溴原子活性适中,反应选择性强,主要得到 CH3Br
(2) 用Cl2
只有一种氢,氯原子反应活性高
2 -1 0 CH3CH2·的稳定性大于 CH3·,易于生成
2-11 2,3-二甲基丁烷有四个典型构象式,2,2,3,3-四甲基丁烷有二个;前者最稳定的构象式为CH3HHCH3H3CCH3
CH(CH3)2CH3HHH3CCH(CH3)2( 顺 ) > ( 反 )(2)2 -1 3 CH3CH(CH3)2CH3CH(CH3)2CH3CH3(1)ClH3CC2H5C2H5H3CCl(2)2 -1 5 2 -1 6 (4)>(2)>(3)>(1) 4-4 (7)HOHCH3OHCH3C2H5HOHHOCH3CH3C2H5 2 (8)(CH3)2CHCOH3COOCHCH3(CH3)2CHCOCH3OCHCH3 (9)CH2BrBrBr (10)BrOCH3 (11)H2C—CnCH3COOCH3 4-5(1) CH3CH2CH2CHCH2乙烯基烯丙基 CH3CH2CHCHCH3丙烯基有顺反异构