When phenol is treated with CHCl_(3) and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediates?

When phenol is treated with CHCl_(3) and NaOH followed by acidificatio

1.	When phenol is treated with CHCl_(3) and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediates?
Answer» SOLUTION :SEE MACHANISM of REIMER Tiemann REACTION.