NMR:

\\\\delta 1.28(3H,t,J

)

=

(

7Hz);\\\\delta 3.91(2H,q,J

)

=

(

7Hz);\\\\delta 5.0(1H,d,J

)

=

(

4Hz);\\\\delta 6.49(1H,d,J

)

=

(

4Hz)ppm

\ IR: 3100,1644 (strong), 1104, 1166,

694cm^(-1)

(strong)\ no IR absorptions in the range

700-1100cm^(-1)

or above

3100cm^(-1)

\ Mass spectrum:

(m)/(z)=152,150

(equal intensity; double molecular ion)

NMR: 1.28(3H,t,J=7Hz);3.91(2H,q,J=7Hz);5.0(1H,d,J=4Hz);6.49(1H,d,J=4Hz)ppm IR: 3100, 1644 (strong), 1104, 1166, 694cm1 (strong) no IR absorptions in the range 7001100cm1 or above 3100cm1 Mass spectrum: m/z=152,150 (equal intensity; double molecular ion)