9
9
120 100 80 60 40 20 0 -20 -40 -60 -80 -100 -120 -140
ppm
0.97
0.88 0.96
2.00
-120 -125 -130
40 30 20 10 0 -10 -20 -30ppm
Problem R-12N. 32.4 MHz 31
P-{1
H} NMR spectra.
Solvent toluene-d8
(Source: Chem. Commun. 1988, 1615) Pd
P4
Et3
P5
Et3
Cl
P3
P1
P2Me3C
Me3C
+50 C
-30 C
-75 C
Hz
0200400600800100012001400160018002000
Hz scale for expansions
Hz
0200400600800100012001400160018002000
Hz scale for main spectra
115 110
-120-125
O
NO2
Hα
O
Hα
NO2
O
NO2
Hα
O
NO2
Hα