A compound with IR bands at 3025 (m), 2915 (s), 2830 (m), 2705 (m), 1725 (s), 16

Question

A compound with IR bands at 3025 (m), 2915 (s), 2830 (m), 2705 (m), 1725 (s), 1645 (w) cm^-1; and has 7 peaks in the ^13C NMR including peaks at 124, 129 and 205 ppm; DEPT 90: 124 uparrow, 129 uparrow and 205 uparrow. A compound with IR bands at 1745 (s). 1220 (s) cm^-1; ^1H NMR delta 2.10 (s. 6H). 4 25 (s. 4H); ^13 C: 3 peaks including one at 171 ppm. A compound with an IR bands at 3450 (s. brd). 1705 (s) cm^-1; ^1H NMR 1.25 (S.6H). 2.20 (s, 3H). 2.60 (s, 2H), 3.90 (s, 1H, exc with D_2O). A compound with an IR band at 1735 (s) cm^-1; 6 ^13C NMR peaks including one at 177 ppm: is chiral when pure. A compound with an IR band at 2250 (s) cm^-1; ^1H NMR; delta 1.45 (d, 3H), 3 05 (sextet 1H). 3.7 (d, 2H); mass spec; m/z = 103/105 (3:1). A compound with ^1H NMR peaks at delta 0.90 (d, 6H), 1.05 (d, 3H), 1.35 (s, 2H, exc with D_2O), 2.80 (pentet, 1H): 4 peaks in the ^13C NMR; mass spec = 87. For questions 26-35, answer using the one of the following compounds.

Explanation / Answer

Answer of 30 is Structure 6

Answer of 31 is Structure 9

Answer of 32 is Structure 8

Answer of 33 is Structure 3

Answer of 34 is Structure 17

Answer of 35 is Structure 10

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