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Among the following compounds, which wil...

Among the following compounds, which will not repond to cannizzaro's reaction, upon treatement with alkali?

A

`Cl_(3)C CHO`

B

`Me_(3)C CHO`

C

`C_(6)H_(5)CHO`

D

`HCHO`

Text Solution

Verified by Experts

The correct Answer is:
A
Although `Cl_(3)C-CHO` does not contain an alpha hydrogen yet it does not undergo cannizzaro reaction. Instead under basic conditions.

Due to strong -I-effect of the `Cl_(3)C` group, it undergoes nucleophilic attach by `OH^(-)` followed by elimination of `Cl_(3)C^(-)` group. proton exchange between `Cl_(3)C^(-)` and HCOOH finally gives `CHCl_(3)`. and `HCOO^(-)`.
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