Assignment

Shift

Integration

Splitting Pattern

J-Values

A

6.38

1

Singlet

B

2.73

1

Doublet

18.1 Hz

C

2.60

1

Dt

20.1, 9.9 Hz

D

2.45

1

ddd

20.1, 10.1 Hz

E

2.32-2.06

4

Multiplet

F

2.05-1.89

3

Multiplet

G

1.12

3

singlet

H

.99

3

singlet

I

.11

9

Singlet