Organic Chemistry
Elements and Compounds
Metal and Alloys

Why do aldehydes are more reactive than ketones?



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because aldehyde has one Hydrogen attached to the C=O carbon where less steric hinderance is observed in comparison to ketone. Also, CH3 is an electron donating group where it stabilize an electron poor site but destabilize an electron rich site, hence, making the C=O carbon less electrophilic. When it is less electrophilic, the nucleophile is less likely to attack in a ketone than in aldehyde where a hydrogen is attached to the C=O carbon.