A) formaldehyde, 3
B) acetaldehyde, 6
C) crotonaldehyde, 4
D) propanaldehyde, 6
Correct Answer: B
Solution :
Idea This problem includes concept of Claisen condensation. Claisen condensation The reaction between benzaldehyde and acetaldehyde leads to formation of cinnamaldehyde in presence of base as follows Molecular formula \[={{C}_{9}}{{H}_{8}}O\] Degree of un saturation \[u=(C+1)-\frac{H}{2}+\frac{N}{2}\] \[u=(9+1)-\frac{8}{2}=10-4=6\] TEST Edge Problem on nucleophilic addition of Grignard reagent or organotithium reagent to carbonyl compound are asked generally, students are allowed to study these including stereochemistry of compound.You need to login to perform this action.
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