PG entrance exam CUET PG 2025 Mock Test Chemical Sciences Structure Determination of Organic Compounds 1h NMR and 13c NMR Spectroscopy
A compound displays the following spectral data. The correct structure of the compound is IR: 1690 cm–1
1H NMR: δ 2.5 (s, 3H), 3.8 (s, 3H), 6.9 (d, J = 8 Hz, 2H), 7.8 (d, J = 8 Hz, 2H) ppm 13C NMR: δ 197, 165, 130, 129, 114, 56, 26 ppm
1
2
3
4