in Kolbe's reaction,
phenol reacts with NaOH to give sodium phenoxide which in presence of carbon dioxide and H+ gives salicylic acid.
here, CO2 acts as a weak electrophile.
see for remembering kolbe's reaction just revise this sentence
" phenoxide ion generated with phenol with sodium hydroxide is even more reactive than phenol towards electrophilic aromatic substitution. Hence, it undergoes electrophilic substitution with carbon dioxide, a weak electrophile. Ortho hydroxybenzoic acid is formed as the main reaction product.
pls rate me if u r satisfied by my answer!!!!!!!!!!!
Preparing for JEE?
Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015
@ INR 4,950/-
For Quick Info
Find Posts by Topics