Chapter 26, Problem 26.5P

Interpretation Introduction

Interpretation:

The matching of the given heterocyclic compound with their chemical shift of proton at $\text{C2}$ position.

Concept introduction:

Pyridine is a six-membered heterocyclic aromatic ring where a nitrogen atom is placed instead of a carbon atom. Pyrrole is a five-membered cyclic aromatic ring contains one nitrogen atom instead of a carbon atom. Pyrrolidine is a five-membered cyclic saturated ring contains one nitrogen atom instead of a carbon atom. More electron-deficient the compound more is the chemical shift.