消去的取向：（查依采夫规则） H2S04 CH3CH2-CH-CH3->CH;CH=CHCH,+CH3CH2CH=CH2 86C OH 80% 20% 也有重排(E1历程) CH3 H+H3C CH3 CH3 CH3C-CH=CH2 CH3 OH CH3 CH3 70% 30% Organic Chem
Organic Chem 消去的取向：(查依采夫规则) 也有重排（E1历程） CH3CH2 CH OH CH3 H2 SO4 86C CH3CH CHCH3 + CH3CH2CH CH2 80% 20% CH3 C CH3 CH3 CH OH CH3 C C H3 C H3 C CH3 CH3 H+ CH3 C CH3 CH3 + CH CH2 70% 30%
4.醇的氧化脱氢反应： 氧化：1° K2CrO7 RCH2OH RCHO-RCOOH H+ OH 2° K2CrO7 R-CH-R' H+ 3°一般不反应， 条件激烈时，氧化同时裂解： CH3 H30 CH3C-OH+HNO3 C=CH CH3 -H20 H3C [O] CO2+H2O+CH3COOHCH3-C-CH3 +H2O+COz Organic Chem
Organic Chem 4. 醇的氧化脱氢反应： 氧化： 3º 一般不反应， 条件激烈时，氧化同时裂解： 1º 2º RCH2OH H + K2CrO7 RCHO RCOOH R CH OH R' H + K2CrO7 R C O R' CH3 C CH3 CH3 OH H+ C CH H3C H3C [O] CH3 C O CH3 + H2O + CO2 [O] CH3COOH -H2O + HNO3 CO2 + H2O +