13C - NMR Chemical Shift Increments for substituted benzenes
Table VII (continued)
C-l C of Substituent
Substituent (Attachment) C-2 C-3 C-4 (ppm from TMS)
0
CCF3b
ONb
NH2b
N(CHSV 0
NHCCH3a
N02b
N=C=Ob Fb
Qb
Brb P
CF3b
SHC
SCH3C
SOjNH^0
Si(CH3)3a
-5.6 -15.4 + 18.Ö +22.4
+ 11.1 +20.0 +5.7 +34.8 +6.2 -5.5 -32.2 -9.0 +2.3 + 10.2 + 15.3 + 13.4
+ 1.8 +3.6 -13.3 -15.7
-9.9 -4.8 -3.6 -12.9 +0.4 +3.4 +9.9 -2.2 + 1.1 -1.8 -2.9 +4.4
-0.7 +0.6 +0.9 +0.8
+0.2 +0.9 + 1.2 +1.4 + 1.3 +1.7 +2.6 +0.3 +1.1 +0.4 +0.4 -1.1
+6.7
+3.9 118.7 -9.8 -15.7
-5.6 +5.8
-2.8 129.5
-4.5
-1.9 .
-1.6
-7.4
+3.2
-3.1
-3.6
+3.3
-1.1
aNeat bIn CQ4 eIn CDC13