IR: 3365 cm-1; 1H NMR: delta 2.75 (s, 3H), delta 3.55 (s, 1H), delta 3 95 (s, 1H

Question

IR: 3365 cm-1; 1H NMR: delta 2.75 (s, 3H), delta 3.55 (s, 1H), delta 3 95 (s, 1H), delta 7.0-7.3 (m, 4H); 13C NMR: 6 peaks. IR: 3297 cm-1 (broad s); 1H NMR: delta 2.2 (s, 6H), delta 5.70 (s, 1H), delta 6.45 (s, 2H), delta 6.56 (s, 1H); soluble in 2 molar NaOH soln. IR: 2826 (m), 2728 (m), 1724 (s) cm-1; 1H NMR: delta 1.45 (d, 3H), 2.35 (s, 3H), 3.62 (quintet, 1H), 7 25(d, 2H), 7.41 (d, 1H), 9.68(d, 1H); 13C NMR: 8 peaks with 1 at delta 188. IR: 1768 (s) cm-1; 1H NMR: delta 1.29 (d, 6H), 2.78 (septet, 1H), 7.06 (d, 2H), 7.19 (t, 1H), 7.34 (t, 2H); 13C NMR: 7 peaks including 1 at delta 176. IR: 3436 (brd), 3353 (brd) cm-1; 1H NMR: delta 2.21 (s, 6H), 2.35 (s, 3H), 3.46 (s, 2H), 6.30 (s, 2H); 13C NMR: 6 peaks; soluble in 3 molar HCl.

Explanation / Answer

17-E (According to 13C peaks. Looks there is some mistake in the question)

18-D

19. K

20- I

21-C

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