Phenol is heated with CCl4 and aqueous NaOH, and the mixture is then acidified. The main product is

JEE Main levelSingle correct optionDifficulty 2 of 3ap099

Phenol is heated with $CCl X_{4}$ and aqueous $NaOH$ , and the mixture is then acidified. The main product is

Under these Reimer-Tiemann conditions the electrophile is a

CCl X_{3}

-type species which attacks the phenoxide ortho position. Hydrolysis of the

- CCl X_{3}

group converts it to

- COO -

, so acidification gives salicylic acid.