Question

(ch3)2chch(oh)ch3与浓硫酸共热

1、(CH3)2CHCH2OH与浓硫酸共热(分子内脱水）
2、CH3CHCH3(还有一个羟基在第二个碳上）与浓硫酸共热（分子间脱水)
3、CH3CHCH3(还有一个羟基在第二个碳上）与O2、Ag共热
4、（CH3）3CCl与CH3CH2OH、NaOH混合加热
5、甲醇燃料电池(DMFC)为甲醇负极,氧正极和质子交换膜构成,写出电池工作时正极和负极的电极总反应：
正极：____________________________________
负极：____________________________________
总反应:___________________________________
2、3中应该是这样
CH3CHCH3
|
OH

Answer 1

(1) (CH3)2CHCH2OH+(CH3)2CHCH2OH=(CH3)2CHCH2OCH2CH2(CH3)+H2O{条件是可逆,浓硫酸,加热｝
（2） CH3CHCH3 CH3CHCH3 CH3CHCH3
| + | = | + H2O
OH OH O
|
CH3CHCH3
{条件是可逆,浓硫酸,加热｝
(3) CH3CHCH3 CH3CCH3
| + O2 = || + H2O
OH O
{条件是可逆,Ag,加热｝
(4) （CH3）3CCl = CH3CCH3
|| +HCI
CH2
{条件是可逆,NaOH醇溶液,加热｝
（5）正极：O2+2H2O+4e- =4OH-
负极：CH3OH+4OH- -4e- =CO2+3H2O
总反应：CH3OH+O2=CO2+H2O