Question

Choose correct option:-

• A. Anisole when treated with $conc.HN{O}_3\&conc.H_{2}S{O}_4,$ major product is 3-nitro anisole.
• B. Acetylation of salicylic acid gives aspirin
• C. ^{${}^{-}CHC{l}_2$ is nucleophile attacking the $s{p}^2$ hybridised carbon in phenoxide ion in Reimer-Tiemann reaction.}
• D. Phenol is commercially prepared from Dow’s process.

Answer 1

The correct option is B Acetylation of salicylic acid gives aspirin

Since methoxy group in anisole is activating and o & p-directing, major product is 2-nitro anisole & minor product is 4-nitro anisole.

Acetylation of salicylic acid gives aspirin.

Reimer-Tiemann reaction in presence of $CHC{l}_3\&aq.NaOH$ with phenol leads to attack of electrophile ${}^{+}CHC{l}_2$ on $s{p}^2$ hybridised carbon in phenoxide ion.

Phenol is commercially prepared from oxidation of cumene followed by treatment with acid. This reaction leads phenol & acetone as by-product in large quantities. Dow’s process involves treatment of Chlorobenzene with fused $NaOH$ under high pressure conditions followed by acidification.