The correct structure of the compound based on the following characteristic spectral data is IR: 1736 ~ c m⁻¹ ¹ H ~ NMR: δ 3.59(s, 3 H), 3.32(t, 2H), 2.25(t, 2H), 1. 85-1. 75(m, 2H), 1. 73-1. 62(m, 2H) ¹³ C NMR: δ 174.0, 51.0, 32.9, 32.9, 32.8, 31.0, 23.0

Q47 · CSIR-NET Chemistry, June 2017

Paper: CSIR-NET June 2017 · Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Combined Structure Elucidation · Marks: 2 · Difficulty: Medium

The correct structure of the compound based on the following characteristic spectral data is IR: $\mathrm{1736} ~ c m^{-\mathrm{1}}$ ${ }^{\mathrm{1}} \mathrm{H ~ NMR}: \delta 3.59(\mathrm{s}, 3 \mathrm{H}), 3.32(\mathrm{t}, \mathrm{2H}), 2.25(\mathrm{t}, \mathrm{2H}), \mathrm{1 . 85}-\mathrm{1 . 75}(\mathrm{m}, \mathrm{2H}), \mathrm{1 . 73}-\mathrm{1 . 62}(\mathrm{m}, \mathrm{2H})$ ${ }^{13}$ C NMR: $\delta$ 174.0, 51.0, 32.9, 32.9, 32.8, 31.0, 23.0

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