Question

Condition for exhibition of tautomerism​

Answer 1

Answer:

Tautomerism is a functional isomerism wherein the two structures which are isomers readily interconvert to each other and exist in dynamic equilibrium with each other. This reaction results in the relocation of proton (hydrogen atom) and the two structural isomers are called tautomers. Now, the two conditions for tautomerism are:

1. Compounds must have an electron withdrawing atom or group i.e., atom which is more electronegative than carbon and has the tendency to accept the hydrogen atom (as tautomerism involves migration of hydrogen atom).

2. There must be a carbon linked to that electron withdrawing atom and further this carbon is linked to another carbon having a hydrogen atom. This hydrogen is referred to as acidic α−hydrogenα−hydrogen.

Answer 2

1. Alpha carbon should be sp3
2. Alpha carbon should contain Alpha hydrogen