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Describe the following reactions: (i) Cannizaro reaction (ii) Cross aldol reaction

Describe the following reactions:
(i) Cannizaro reaction
(ii) Cross aldol reaction

Grade:Upto college level

1 Answers

Gaurav
askIITians Faculty 164 Points
9 years ago
Cannizzaro reaction:
Aldehydes and ketones having no alpha hydrogen atom:
255-2288_201457-113658664-8265-Untitled.png
When two carbonyl groups are present within a molecule, think of intramolecular reaction.
OH-will attack more positively charged carbon. In this case, it is right >c=0 group.
255-1084_201457-12444283-646-Untitled.png
Aldol condensation
Aldehydes and ketones having alpha hydrogen atom:
255-1853_201457-113617462-7495-Untitled.png

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