NMR Practice Answers
1
O H H H H H 1.34 1.34 1.34 9.87 7.48 7.48 7.73 7.73 C 11 H 14 O IR: 1730 cm -1 NMR: Singlet 1.3 ppm (9H) Doublet 7.5 ppm (2H) Doublet 7.7 ppm (2H) Sinlget 9.9 ppm (1H) O O 2.09 3.61 2.09 IR: 1730 cm -1 NMR: Singlet 2.1 ppm (1H)) Singlet 3.6 ppm (3H) Degree of Unsaturation: 5 Degree of Unsaturation: 2 NMR: Doublet 1.0 ppm (6H)) Multiplet 2.1 ppm (1H) Doublet 2.6 ppm (2H) Singlet 2.0 ppm (2H) NH 2 1.01 2.07 2.61 2.0 1.01 Degree of Unsaturation: 0 IR: 3400 cm -1 O O 2.29 4.12 1.14 1.30 Degree of Unsaturation: 1 IR: 1730 cm -1 NMR: Triplet 1.1 ppm (3H) Triplet 1.3 ppm (3H) Quartet 2.3 ppm (2H) Quartet 4.1 ppm (2H) NMR/IR practice: Provide a structure consistent with the given data in each case. Degree of Unsaturation: 1 IR: 1700 cm -1 3300 cm -1 NMR: Triplet 2.2 ppm (2H) Multiplet 1.56 ppm (2H) Multiplet 1.33 ppm (2H) Triplet 1.0 ppm (3H) Singlet 11.0 ppm (1H) C 5 H 10 O 2 HO O 11.0 2.23 1.56 1.33 0.96 C 5 H 8 O 2 C 4 H 11 N C 5 H 10 O 2
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NMR Set
Transcript of NMR Practice Answers
O
H
H
HH
H 1.34
1.34
1.34
9.87
7.48
7.487.73
7.73
C11H14O
IR: 1730 cm-1NMR:Singlet 1.3 ppm (9H)Doublet 7.5 ppm (2H)Doublet 7.7 ppm (2H)Sinlget 9.9 ppm (1H)
O O
2.093.61
2.09
IR: 1730 cm-1NMR:Singlet 2.1 ppm (1H))Singlet 3.6 ppm (3H)
Degree of Unsaturation: 5
Degree of Unsaturation: 2
NMR:Doublet 1.0 ppm (6H))Multiplet 2.1 ppm (1H)Doublet 2.6 ppm (2H)Singlet 2.0 ppm (2H)
NH2
1.01
2.07
2.61
2.0
1.01
Degree of Unsaturation: 0
IR: 3400 cm-1
O
O
2.29
4.121.14
1.30
Degree of Unsaturation: 1
IR: 1730 cm-1NMR:Triplet 1.1 ppm (3H)Triplet 1.3 ppm (3H)Quartet 2.3 ppm (2H)Quartet 4.1 ppm (2H)
NMR/IR practice: Provide a structure consistent with the given data in each case.
Degree of Unsaturation: 1
IR: 1700 cm-1
3300 cm-1
NMR:Triplet 2.2 ppm (2H)Multiplet 1.56 ppm (2H)Multiplet 1.33 ppm (2H)Triplet 1.0 ppm (3H)Singlet 11.0 ppm (1H)
C5H10O2
HO
O
11.02.23
1.56
1.33
0.96
C5H8O2
C4H11N
C5H10O2
