Question 1

In the given reaction, products are:

Accepted Answer

When anisole reacts with  HBr , phenol and methyl bromide are obtained.In this reaction, lower alkyl halide and higher alcohol (phenol) are obtained.option D is correct.

Question 2

In the above reaction, identify  P_1  and  P_2  respectively.

Accepted Answer

In the case of  H_2O /acetone, attack of nucleophile will be at alkyl halide. The carbocation will form on the ring. In the case of  HBr , attack of nucleophile will be at alcohol. The carbocation will form outside the ring, and therefore the ring expansion will take place.Primary carbocation will rearrange into secondary carbocation.

Question 3

Compound X is:

Accepted Answer

The compound X is 2-phenylethanol.The triple bond of ethynylbenzene is selectively hydrogenated to double bond by using Lindlar's catalyst to obtain styrene. Hydroboration oxidation of styrene gives 2-phenylethanol (compound X).

Alcohols, Phenols And Ethers