A student is given two unknown samples continuing two different
compounds with the same molecular formula, C3H7NO, he annaylzes
them by IR and 1H NMR
Compound A:
IR: 3366, 3189, 2976, 1662 cm-1
1H NMR: 1.15 ppm, 3H, t
2.24 ppm, 2H, q
6.21 ppm, 2H, broad
Compound B:
IR: 3294, 3099, 2946, 1655 cm-1
1H NMR: 1.98 ppm, 3H, s
2.79 ppm, 3H, s
6.40 ppm, 1H, broad
Identify the structure of each compound and justify your
answer.