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Which one of the following esters cannot...

Which one of the following esters cannot undergo self Claisen condensation ?

A

`CH_(3)COOC_(2)H_(5 )`

B

`R-CH_(2)-COOC_(2)H_(5)`

C

`R-overset(R )overset(|)"CH"-COOC_(2)H_(5)`

D

`R-underset(R )underset(|)overset(R )overset(|)"CH"-COOC_(2)H_(5)`

Text Solution

Verified by Experts

The correct Answer is:
D
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OP TANDON-CARBOXYLIC ACIDS AND THEIR DERIVATIVES-Objective questions
  1. In the reaction, [A] and [B] respectively be :

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  2. Claisen condensation involves :

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  3. Which one of the following esters cannot undergo self Claisen condensa...

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  4. Match the list, I with List II and select the correct answer using the...

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  5. The following sequence of reactions on A gives

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  6. The compound is used as

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  7. The correct decreasing order of their reactivity towards hydrolysis is

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  8. Acetoacetic ester is used for the synthesis of:

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  9. Starting from diethyl malonate, what type of acids can prepared from i...

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  10. Acetic anhydride may be prepared by the reaction of acetic acid with:

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  11. Acetic anhydride is prepared industrially by heating sodium acetate wi...

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  12. Acetyl chloride is prepared industrially by distilling sodium acetate ...

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  13. Urea on heating with ethyl alcohol gives:

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  14. Urea may be identified by which of the following tests?

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  15. (A)overset(PCl(5))toRCOCl, (A)may be :

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  16. Reaction of R-overset(O)overset(||) C-NH2 with a mixture of Br2 and KO...

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  17. Urea is prepared in the laboratory by the action of NH(3) on

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  18. The product formed are :

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  19. Identify [X] and [Y] in the following reaction :

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  20. (A) Acetoacetic ester (CH(3)-overset(O)overset(||)C-CH(2)-overset(O)ov...

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