Position

δ_H, J in Hz

1

2

3

4

H-2

7.09

(d, J = 1.6 Hz)

6.84 (s)

7.178 (s)

7.45

(d, J = 1.6 Hz)

H-5

6.99

(d, J = 8.0 Hz)

-

-

7.07

(d, J = 8.4 Hz)

H-6

7.15

(dd, J = 8.0, 1.6 Hz)

6.84 (s)

7.178 (s)

6.95

(dd, J = 8.4, 1.6 Hz)

H-α

7.42

(d, J = 16.0 Hz)

7.42

(d, J = 16.0 Hz)

-

-

H-β

6.62

(dd, J = 16.0, 8.0 Hz)

6.63

(dd, J = 16.0 Hz, 8.0 Hz)

-

-

H-γ

9.68

(d, J = 8.0 Hz)

9.68

(d, J = 8.0 Hz)

-

-

OCH₃-3

3.98 (s)

3.97 (s)

3.99 (s)

4.00 (s)

OCH₃-4

-

3.97 (s)

3.99 (s)

4.00 (s)

OCH₃-5

-

3.97 (s)

3.99 (s)

-

-CHO

-

-

9.845

9.857