931羰基的亲核加成( Nucleophilic Addition To The Carbon-Oxygen Double bond) g The most characteristic reaction of aldehydes and ketones is nucleophilic addition to the carbon-oxygen double bond LC=O H-Nu C-OH N Nucleophilic addition to the carbon-oXygen double bond occurs in either of two general waysOrganic Chemistry Organic Chemistry Xiamen Xiamen University University 9.3.1 羰基的亲核加成(Nucleophilic Addition To The Carbon-Oxygen Double Bond) The most characteristic reaction of aldehydes and ketones is nucleophilic addition to the carbon-oxygen double bond. C O + C OH Nu H Nu Nucleophilic addition to the carbon-oxygen double bond occurs in either of two general ways