Chemical Shift |
Coupling |
J Value |
# of H's |
Rationale |
7.44 |
d |
7.5 Hz |
1H |
Doublet, close proximity carbonyl group, which deshields electrons |
7.23 |
t |
7.5 Hz |
1H |
Aromatic with 2 hydrogen neighbors |
7.11 |
dd |
7.5 Hz |
1H |
Long range coupling, aromatic doublet, lower ppm. |
6.4 |
ddd |
6.0 Hz |
1H |
long range coupling, bromine and carbonyl in close proximity |
4.89 |
d |
7.5 Hz |
1H |
Oxygen neighbor, doublet |
4.75 |
m |
n/a |
1H |
Long range coupling |
4.45 |
d |
5.5 Hz |
2H |
proximity to Hydroxyl, doublet |
4.29 |
d |
6.2 Hz |
2H |
Proximity to oxygen, doublet |
3.12 |
dd |
5.1, 2.2 Hz |
2H |
Proximity to bromine group, long range coupling |
2.8 |
dd |
6.0, 1.3 Hz |
1H |
Long range coupling, doublet |
2.26 |
m |
n/a |
1H |
proximity to bromine group |
2.23 |
s |
n/a |
3H |
Off Aromatic carbon |
1.66 |
s |
n/a |
3H |
sp3 |
1.51 |
s |
n/a |
3H |
sp3 |
1.37 |
s |
n/a |
3H |
Off sp3 carbon |