Reaction Behavior of Cellulose in the Homogeneous Esterification of Bagasse Modified with Phthalic Anhydride in Ionic Liquid 1-Allyl-3-methylimidazium Chloride

Table 2

Primary NMR correlations in DMSO- for cellulose modified with phthalic anhydride.

Glycosyl residue		⁢  &   chemical shifts (ppm)
		1	2	3	4	5	6a	6b
Cellulose (internal)	^1H	4.31	3.05	3.36	3.30	3.16	3.56	3.77
	^13C	103.26	73.56	75.24	80.97	77.18	60.74	60.74
Cellulose (NR)	^1H	4.23	2.98	3.15	3.05	3.16	3.39	3.69
	^13C	103.65	73.77	77.07	70.54	77.18	61.50	61.50
Cellulose ()	^1H	4.89	3.16	3.69	3.31	3.68	3.56	3.72
	^13C	92.44	72.68	72.11	81.36	70.25	60.80	60.80
Cellulose ()	^1H	5.14	2.93	3.25	3.31	3.06	3.56	3.72
	^13C	103.31	74.93	75.24	81.36	75.13	60.80	60.80