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Methyl ester reacts with EtMgBr to give ...

Methyl ester reacts with `EtMgBr` to give `3^@` alcohol The ester is :

A

Methyl propanoate

B

Methyl butanoate

C

Methyl ethanoate

D

Methyl formate

Text Solution

Verified by Experts

The correct Answer is:
B
(b) `3^@` alcohol is with two `(Et)` group obtained form `G.R`. Therefore, `(Pr-)` group has come from the ester.
So, the ester is (methyl butanoate). Hence, the answer is `(b)`.
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CENGAGE CHEMISTRY-GRIGNARD REAGENTS AND ORGANOMETALLIC REAGENTS-Exercises (Single Correct)
  1. Propane dithioic acid is prepared by the reaction of the following, fo...

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  2. Propylsulphinic acid is prepared by the reaction of the following, fol...

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  3. .

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  4. Ethanoic propanoic anhydride on reaction with excess of MeMgBr gives t...

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  5. Reactivity of MeMgBr with the following in the decreasing order is : ...

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  6. Product. The major product is :

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  7. Reactivity of with the following G.R in the decreasing order is : (...

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  8. .

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  9. Reactivity of EtMgBr with the following in the decreasing order is : ...

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  10. Reactivity of PhMgBr with the following in the decreasing order is : ...

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  11. Reactivity of PrMgBr with the following in the decreasing order is : ...

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  12. Reactivity of HCHO with the following G.R in the decreasing order is :...

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  13. Which of the following 3^@ alcohols does propyl ester give during reac...

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  14. Ethyl ester reacts with PrMgBr to give 2^@ alcohol. The alcohol is :

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  15. Methyl ester reacts with EtMgBr to give 3^@ alcohol The ester is :

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  16. Propyl ester reacts with isopropyl magnesium bromide to give 2^@ alcoh...

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  17. Propyl lithium reacts with ethene to give a compound (A), which on rea...

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  18. Coupling reaction between RMgX and R'X takes place to give R-R' in the...

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  19. Phenyl isocyanide + Benzyl magnesium bromide overset(1.Ether Delta) un...

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  20. The compound (A) in the previous question is further hydrolysed in dil...

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