Question

`CH_(3)CHO+HCHOoverset("dil NaOH")underset("heat")rarrAoverset("HCN")underset(H_(3)^(+)O)rarrB`
The structure of the compound B is
A. `CH_(2)=CH-underset(OH)underset("| ")"CH"-COOH`
B. `CH_(2)=CH-underset(CN)underset("| ")"CH"-OH`
C. `CH_(3)CH_(2)-underset(CN)underset("| ")"CH"-OH`
D. `CH_(3)-underset(OH)underset("| ")"CH"-COOH`

Answer 1

Correct Answer - B
In Reiner Tiemann reaction, a new `C-C` bond is set up between the benzene ring and the CHO group.