mechanism for the acid-catalyzed addition of water CHCH-CH2 +HH slow CH3CHCH3 H2Q: :fast CHCHCH3 H 酸催化 OH fast 亲电加成机理一加水 CH3CHCH3 H3O: :OH CH:CH=CH2 H -0CH3 slow CH3CHCH3 CH3OH CH3CHCH3 酸催化 OCH H CH3OH fast CH3CHCH3 CH3( H 亲电加成机理一加醇 :QCH3