2)酸催化下的反应机理 Acid-Catalyzed Nucleophilic Addition to an Aldehyde or Ketone + C O=C=OH← C--ouI: Nu-H Slow H C-OH =--C-OH ①D +NuH NuOrganic Chemistry Organic Chemistry Xiamen Xiamen University University 2) 酸催化下的反应机理 Acid-Catalyzed Nucleophilic Addition to an Aldehyde or Ketone C O H + C OH C OH C OH Nu Nu H Sl o w H H + C OH Nu