Explain Oxymercuration and  demercuration. from Chemistry Alco

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 Multiple Choice QuestionsShort Answer Type

211.

How are the following conversions carried out?
Methyl magnesium bromide → 2-Methylpropan-2-ol.

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212.

Give the structure and IUPAC name of the expected product of the following reaction:

Catalytical reduction of butanal.


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213.

Give the structure and IUPAC name of the expected product of the following reaction:
Hydroboration of but-1-ene.

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214.

Give the structure and IUPAC name of the expected product of the following reaction:

Hydration of propylene in presence of dil. sulphuric acid.

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215.

Give the structure and IUPAC name of the expected product of the following reaction:
Reaction of propanone with methylmagnesium bromide followed by hydrolysis.

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216.

Explain Oxymercuration and  demercuration.


Oxymercuration-demercuration: In this method alkene reacts with mercuric acetate in presence of water to form hydroxy mercurial compound, which on reaction with NaBH4 yield alcohol. The alcohol is formed according to Markovnikoff’s rule.



First step is oxymercuration and second step is demercuration.

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217.

Explain Hydroboration.

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218.

The following is not an appropriate reaction for the preparation of t-butyl ethyl ether.



(i) What would be the major product of this reaction?
(ii) Write a suitable reaction for the preparation of t-butyl ethyl ether.

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219.

Give the major products that are formed by heating each of the following ethers with HI.

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220.

Give the major products that are formed by heating each of the following ethers with HI.




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