Evaluation of four ionic liquids for pretreatment of lignocellulosic biomass

BMC Biotechnology

Table 1 Results from the ionic liquid synthesis

Abbreviation	Name	H₂O cont.	Cl^-cont.	Yield^a(%)
[C₄C₁im][MeCO₂]	1-butyl-3-methylimidazolium acetate	260 ppm	0.8%	37
[C₄C₁im][HSO₄]	1-butyl-3-methylimidazolium hydrogen sulfate	20%	N.A.^b	87
[C₄C₁im][Cl]	1-butyl-3-methylimidazolium chloride	940 ppm	N.A.	48
[C=C₂C₁im][MeCO₂]	1-allyl-3-methylimidazolium acetate	1500 ppm	0.9%	36

^aThe yields were calculated for the total synthesis (two steps for all of the ILs except [C₄C₁im][Cl], which was synthesized in one step) starting from the substituted imidazoles. ^bNot Applicable.

ISSN: 1472-6750