13C - NMR Chemical Shift Increments for substituted benzenes
	Calcd.	Observed	Observed	Observed
1.	-17.3	-16.6	1. -15.4	4. -1.9
2.	+ 4.9	+ 5.1	2.    + 3.6	3. +1.3
3.	+ 1.0	+ 1.3	3.    + 0.6	2. +0.4
4.	+ 10.1	+ 10.8	4.    + 3.9	1. +6.2
Table VII. Incremental Shifts of the Aromatic Carbon Atoms of Monosubstituted Benzenes (ppm from Benzene at 128,5 ppm, + downfield, — upfield). C Atom of Substituents in ppm from TMS
Substituent	C-l (Attachment)	C-2	C-3	C-4	C of Substituent (ppm from TMS)
Hb	0.0	0.0	0.0	0.0	
CH3b	+8.9	+0.7	-0.1	-2.9	21.3
CH2CH3a	+15.6	-0.5	0.0	-2.6	29.2 (CH2), 15.8 (CH3)
CH(CH3)2a	+20.1	-2.0	0.0	-2.5	34.4 (CH), 24.1 <CH3)
C(CH3)3a	+22.2	-3.4	-0.4	-3.1	34.5 (C), 31.4 (CH3)
CH=CH2a	+9,5	-2.0	+0.2	-0.5	135.5 (CH), 112.0 (CHj)
C=CHb	-6,1	+3.8	+0.4	-0.2	
	+ 13.1	-1.1	+0.4	-1.2	
CH2OHa	+ 12.3	-1.4	-1.4	-1.4	64.5
CH2OCCH3c	+7.7	~0.0	~0.0	~0.0	20.7 (CH3), 66.1 (CH2),
O					170.5 (C=0)
0Hb	+26.9	-12.7	+1.4	-7.3	
OCH3b	+31.4	-14.4	+ 1.0	-7.7	54.1
OC6H5a	+29.2	-9.4	+1.6	-5.1	
O lj					
OCCH3a	+23.0	-6.4	+1.3	-2.3	
0 II					
II CHa 0	+8.6	+1.3	+0.6	+5.5	192.0
C'CH3b O	+9.1	+0.1	0.0	+4.2	25.0 (CH3), 195.7 (C=0)
CC6Hsb 0	+9.4	+ 1.7	-0.2	+3.6	
CCF3b 0	-5.6	+ 1.8	+0.7	+6.7	
COHb	+2.1	+ 1.5	0.0	+5.1	172.6
0					
COCH3a O	+1.3	-0.5	-0.5	+3.5	51.0 (CH3)
CClb	+4.6	+2.4	0.0	+6.2	
			+ U		
					chemical shifts
Table VII (continued)
Substituent
C-l
(Attachment)
C-2
C-3
C-4
C of Substituent (ppm from TMS)
0 tl
o=n°
NHjb N(CH3)2a O
NHCCH3a NOjb N-C=Ob Fb
Clb Brb P
CF,b
SHC
SCH3C
SO,NH2c
Si(CH3)3»
"Neat
bIn ecu
CDC13
-5.6 -15.4. + 18.0 +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 -9.8 -15.7
-5.6 +5.8 -2.8 -4.5 -1.9 -1.6 -7.4 +3.2 -3.1 -3.6 +3.3 -1.1
118.7
129.5