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Active methylene compounds are of great ...

Active methylene compounds are of great importance in synthetic chemistry. When `–CH_(2)` (methylene) group is flanked between two electron withdrawing groups, then its hydrogen becomes acidic and can be replaced easily. The acidity of methylene hydrogen depends upon the strength of electron withdrawing group. Acetoacetic ester, malonic ester, etc. are the examples of active methylene compound. In synthetic application acidic hydrogen is trapped by a strong base to get resonance stabilised anion which reacts accordingly to give the desired product.


The final product is :

A

`Ph-COOH`

B

`Ph-overset(O)overset(||)(Ph)-C-CH=CH-COOH`

C

`Ph-CH=CH-COOH`

D

`Ph-CH=CH-CHO`

Text Solution

Verified by Experts

The correct Answer is:
C
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