13. Alcohols and Carbonyl Compounds
Reducing Agent
23PRACTICE PROBLEM
Aldehydes are reduced more rapidly than ketones by a mild reducing agent Sodium triacetoxyborohydride, NaBH(OAc)3. Even in the presence of ketone, NaBH(OAc)3 preferentially reduces aldehyde, as shown in the following reaction.
![](https://lightcat-files.s3.amazonaws.com/problem_images/0d0242b8802ee057-1670337494014.jpg)
Propose the reaction mechanism underlying this selective reduction.
Aldehydes are reduced more rapidly than ketones by a mild reducing agent Sodium triacetoxyborohydride, NaBH(OAc)3. Even in the presence of ketone, NaBH(OAc)3 preferentially reduces aldehyde, as shown in the following reaction.
Propose the reaction mechanism underlying this selective reduction.