Question

What is the Reimer-Tiemann reaction?​

Answer 1

The Reimer–Tiemann reaction is a chemical reaction used for the ortho-formylation of phenols; with the simplest example being the conversion of phenol to salicylaldehyde. The reaction was discovered by Karl Reimer and Ferdinand Tiemann. The Reimer in question was Karl Reimer not the less known Carl Ludwig Reimer

Answer 2

When phenols are treated with chloroform in the presence of sodium hydroxide, an aldehyde group (-CHO) is introduced at the ortho position of benzene ring leading to the formation of o-hydroxybenzaldehyde. This reaction is popularly known as Reimer Tiemann reaction.

I hope it helps you
please mark my answer is a brainalist one please please