Which of the following compounds is a tautomer of the following compound?
C) both and
D) none of these

Question

Which of the following compounds is a tautomer of the following compound? 
C) both and 
D) none of these

Quizplus · Accepted Answer

Tautomerism is a type of structural isomerism where a molecule can exist in two different forms (tautomers) due to the movement of a proton. The compound given in the question is a keto form, containing a carbonyl group (-C=O). The tautomer of this compound contains an enol group, which is when the carbonyl group has moved and become a double bond with the adjacent carbon, while a hydrogen has moved from the adjacent carbon to the oxygen to form a hydroxyl group (-C-OH).

Option A (11eb6c44_58dd_5c01_8d9d_6bb05c324eef_TB8310_00) is not a tautomer of the given compound, as it has the same functional groups and connectivity.

Option B (11eb6c44_58dd_5c02_8d9d_cb699d9bd188_TB8310_00) is not a tautomer either, as it contains a different functional group (-NH2) compared to the given compound (-COCH3).

Option C contains two compounds, 11eb6c44_58dd_5c03_8d9d_17e923f4019a_TB8310_00 and 11eb6c44_58dd_8314_8d9d_3b542a16397f_TB8310_00, both of which are tautomers of the given compound. They have the same connectivity but different functional groups due to movement of a proton.

Therefore, the correct answer is C.

Which of the Following Compounds Is a Tautomer of the Following