[1] C. Tsioptsias, A. Stefopoulos, I. Kokkinomalis, L. Papadopoulou, C. Panayiotou, Development of micro-and nano-porous composite materials by processing cellulose with ionic liquids and supercritical CO2, Green Chem. 10 (9) (2008) 965-971.[2] M. Henriksson, L.A. Berglund, P. Isaksson, T. Lindström, T. Nishino, Cellulose nanopaper structures of high toughness, Biomacromolecules 9 (6) (2008) 1579-1585.[3] K.M. Gupta, J. Jiang, Cellulose dissolution and regeneration in ionic liquids: A computational perspective, Chem. Eng. Sci. 121 (2015) 180-189.[4] K. Zhuo, Q. Du, G. Bai, C.Wang, Y. Chen, J.Wang, Hydrolysis of cellulose catalyzed by novel acidic ionic liquids, Carbohydr. Polym. 115 (2015) 49-53.[5] F. Huo, Z. Liu,W.Wang, Cosolvent or antisolvent? A molecular view of the interface between ionic liquids and cellulose upon addition of another molecular solvent, J. Phys. Chem. B 117 (39) (2013) 11780-11792.[6] Z. Liu, X. Sun, M. Hao, C. Huang, Z. Xue, T. Mu, Preparation and characterization of regenerated cellulose from ionic liquid using different methods, Carbohydr. Polym. 117 (2015) 99-105.[7] J.-M. Andanson, E. Bordes, J.Devémy, F. Leroux, A.A. Pádua,M.F.C. Gomes, Understanding the role of co-solvents in the dissolution of cellulose in ionic liquids, Green Chem. 16 (5) (2014) 2528-2538.[8] M. Isik, H. Sardon, D. Mecerreyes, Ionic liquids and cellulose: Dissolution, chemical modification and preparation of new cellulosic materials, Int. J. Mol. Sci. 15 (7) (2014) 11922-11940.[9] E.W. Castner Jr., J.F.Wishart, Spotlight on ionic liquids, J. Chem. Phys. 132 (12) (2010) 120901.[10] V.V. Chaban, O.V. Prezhdo, A new force field model of 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid and acetonitrile mixtures, Phys. Chem. Chem. Phys. 13 (43) (2011) 19345-19354.[11] V.V. Chaban, O.V. Prezhdo, How toxic are ionic liquid/acetonitrile mixtures? J. Phys. Chem. Lett. 2 (19) (2011) 2499-2503.[12] H. Zhijian, W. Xiaomin, Y. Tian, S. Hang, Y. Shun, Determination and correlation of solubilities of four novel benzothiazolium ionic liquids with PF-6 in six alcohols, Chin. J. Chem. Eng. 22 (4) (2014) 435-446.[13] Z. Zhijun, D. Haifeng, X. ZHANG, The research progress of CO2 capture with ionic liquids, Chin. J. Chem. Eng. 20 (1) (2012) 120-129.[14] H. Wang, G. Gurau, R.D. Rogers, Ionic liquid processing of cellulose, Chem. Soc. Rev. 41 (4) (2012) 1519-1537.[15] R.C. Remsing, R.P. Swatloski, R.D. Rogers, G. Moyna, Mechanismof cellulose dissolution in the ionic liquid 1-n-butyl-3-methylimidazolium chloride: A 13C and 35/37Cl NMR relaxation study on model systems, Chem. Commun. 12 (2006) 1271-1273.[16] R.C. Remsing, G. Hernandez, R.P. Swatloski, W.W. Massefski, R.D. Rogers, G. Moyna, Solvation of carbohydrates in N,N'-dialkylimidazolium ionic liquids: A multinuclear NMR spectroscopy study, J. Phys. Chem. B 112 (35) (2008) 11071-11078.[17] N. Novoselov, E. Sashina, V. Petrenko, M. Zaborsky, Study of dissolution of cellulose in ionic liquids by computer modeling, Fibre Chem. 39 (2) (2007) 153-158.[18] A.M. Fernandes, M.A. Rocha, M.G. Freire, I.M. Marrucho, J.A. Coutinho, L.M. Santos, Evaluation of cation-anion interaction strength in ionic liquids, J. Phys. Chem. B 115 (14) (2011) 4033-4041.[19] L. Feng, Z.l. Chen, Research progress on dissolution and functional modification of cellulose in ionic liquids, J. Mol. Liq. 142 (1) (2008) 1-5.[20] B. Kosan, C.Michels, F.Meister, Dissolution and forming of cellulosewith ionic liquids, Cellulose 15 (1) (2008) 59-66.[21] H. Zhang, J. Wu, J. Zhang, J. He, 1-Allyl-3-methylimidazolium chloride room temperature ionic liquid: A new and powerful nonderivatizing solvent for cellulose, Macromolecules 38 (20) (2005) 8272-8277.[22] T. Heinze, S. Dorn,M. Schöbitz, T. Liebert, S. Köhler, F.Meister, Interactions of ionic liquids with polysaccharides-2: Cellulose, Paper Presented at:Macromolecular Symposia, 2008.[23] A. Potthast, J. Röhrling, T. Rosenau, A. Borgards, H. Sixta, P. Kosma, A novel method for the determination of carbonyl groups in cellulosics by fluorescence labeling. 3. Monitoring oxidative processes, Biomacromolecules 4 (3) (2003) 743-749.[24] V.K. Aggarwal, I. Emme, A. Mereu, Unexpected side reactions of imidazolium-based ionic liquids in the base-catalysed Baylis-Hillman reaction, Chem. Commun. 15 (2002) 1612-1613.[25] G. Ebner, S. Schiehser, A. Potthast, T. Rosenau, Side reaction of cellulose with common 1-alkyl-3-methylimidazolium-based ionic liquids, Tetrahedron Lett. 49 (51) (2008) 7322-7324.[26] M.T. Clough, K. Geyer, P.A. Hunt, S. Son, U. Vagt, T.Welton, Ionic liquids: Not always innocent solvents for cellulose, Green Chem. 17 (1) (2015) 231-243.[27] H. Miyafuji, K. Miyata, S. Saka, F. Ueda, M. Mori, Reaction behavior of wood in an ionic liquid, 1-ethyl-3-methylimidazolium chloride, J. Wood Sci. 55 (3) (2009) 215-219.[28] E. Ohno, H. Miyafuji, Reaction behavior of cellulose in an ionic liquid, 1-ethyl-3-methylimidazolium chloride, J. Wood Sci. 59 (3) (2013) 221-228.[29] E. Ohno, H. Miyafuji, Decomposition of cellulose in an ionic liquid, 1-ethyl-3-methylimidazolium chloride, J. Wood Sci. 60 (6) (2014) 428-437.[30] Z.-D. Ding, Z. Chi,W.-X. Gu, S.-M. Gu, J.-H. Liu, H.-J. Wang, Theoretical and experimental investigation on dissolution and regeneration of cellulose in ionic liquid, Carbohydr. Polym. 89 (1) (2012) 7-16.[31] R.S. Payal, R. Bharath, G. Periyasamy, S. Balasubramanian, Density functional theory investigations on the structure and dissolution mechanisms for cellobiose and xylan in an ionic liquid: Gas phase and cluster calculations, J. Phys. Chem. B 116 (2) (2012) 833-840.[32] H. Du, X. Qian, The effects of acetate anion on cellulose dissolution and reaction in imidazolium ionic liquids, Carbohydr. Res. 346 (13) (2011) 1985-1990.[33] X. Wei, Z. Han, D. Zhang, Theoretical study on the mechanism of the side reaction of 1-butyl-3-methylimidazolium cation with D-glucose, Carbohydr. Res. 374 (2013) 40-44.[34] M. Frisch, G. Trucks, H.B. Schlegel, et al., Gaussian 09, Revision A. 02, 270Gaussian, Inc., Wallingford, CT, 2009 271.[35] P.M. Gill, B.G. Johnson, J.A. Pople, M.J. Frisch, The performance of the Becke-Lee-Yang-Parr (B-LYP) density functional theory with various basis sets, Chem. Phys. Lett. 197 (4) (1992) 499-505.[36] K.Dong, S. Zhang, D.Wang,X.Yao,Hydrogenbonds in imidazoliumionic liquids, J. Phys. Chem. A 110 (31) (2006) 9775-9782.[37] K. Dong, Y. Song, X. Liu, W. Cheng, X. Yao, S. Zhang, Understanding structures and hydrogen bonds of ionic liquids at the electronic level, J. Phys. Chem. B 116 (3) (2012) 1007-1017.[38] H. He, H. Chen, Y. Zheng, S. Zhang, Z. Yu, Hydrogen-bonding interactions between a pyridinium-based ionic liquid [C4Py][SCN] and dimethyl sulfoxide, Chem. Eng. Sci. 121 (2015) 169-179.[39] L. Liu, K. Dong, X. Yao, et al., The unimolecular thermal decompositionmechanism of syn, anti-N, N'-dinitrourea (DNU), Combust. Flame 159 (4) (2012) 1393-1398.[40] C. Gonzalez, H.B. Schlegel, An improved algorithm for reaction path following, J. Chem. Phys. 90 (1989) 2154.[41] C. Gonzalez, H.B. Schlegel, Reaction path following in mass-weighted internal coordinates, J. Phys. Chem. 94 (14) (1990) 5523-5527.[42] H.B. Mayes, L.J. Broadbelt, Unraveling the reactions that unravel cellulose, J. Phys. Chem. A 116 (26) (2012) 7098-7106.[43] Z. Papanyan, C. Roth, D. Paschek, R. Ludwig, Understanding the dissolution of polyols by ionic liquids using the example of a well‐defined model compound, Chem. Phys. Chem. 12 (13) (2011) 2400-2404.[44] Y. Zhao, X. Liu, J.Wang, S. Zhang, Effects of cationic structure on cellulose dissolution in ionic liquids: A molecular dynamics study, Chem. Phys. Chem. 13 (13) (2012) 3126-3133.[45] R.P. Swatloski, S.K. Spear, J.D. Holbrey, R.D. Rogers, Dissolution of cellose with ionic liquids, J. Am. Chem. Soc. 124 (18) (2002) 4974-4975.[46] H. Rodriguez, G. Gurau, J.D. Holbrey, R.D. Rogers, Reaction of elemental chalcogens with imidazolium acetates to yield imidazole-2-chalcogenones: Direct evidence for ionic liquids as proto-carbenes, Chem. Commun. (Camb.) 47 (11) (2011) 3222-3224.[47] D. Enders, O. Niemeier, A. Henseler, Organocatalysis by N-heterocyclic carbenes, Chem. Rev. 107 (12) (2007) 5606-5655.[48] N. Marion, S. Díez‐González, S.P. Nolan, N‐heterocyclische carbene as organokatalysatoren, Angew. Chem. 119 (17) (2007) 3046-3058.[49] M.N. Hopkinson, C. Richter, M. Schedler, F. Glorius, An overview of N-heterocyclic carbenes, Nature 510 (7506) (2014) 485-496.[50] J. Dupont, J. Spencer, On the noninnocent nature of 1, 3-dialkylimidazolium ionic liquids, Angew. Chem. Int. Ed. 43 (40) (2004) 5296-5297.[51] P. Formentín, H. García, A. Leyva, Assessment of the suitability of imidazolium ionic liquids as reaction medium for base-catalysed reactions: Case of knoevenagel and Claisen-Schmidt reactions, J. Mol. Catal. A. 214 (1) (2004) 137-142.[52] S.T. Handy, M. Okello, The 2-position of imidazolium ionic liquids: Substitution and exchange, J. Org. Chem. 70 (5) (2005) 1915-1918.[53] O. Hollóczki, D. Gerhard, K.Massone, et al., Carbenes in ionic liquids, New J. Chem. 34 (12) (2010) 3004-3009.[54] O. Hollóczki, L. Nyulászi, Neutral species from “non-protic” N-heterocyclic ionic liquids, Org. Biomol. Chem. 9 (8) (2011) 2634-2640.[55] M.T. Clough, K. Geyer, P.A. Hunt, J. Mertes, T. Welton, Thermal decomposition of carboxylate ionic liquids: Trends and mechanisms, Phys. Chem. Chem. Phys. 15 (47) (2013) 20480-20495.[56] O. Hollóczki, D.S. Firaha, J. Friedrich, et al., Carbene formation in ionic liquids: Spontaneous, induced, or prohibited? J. Phys. Chem. B 117 (19) (2013) 5898-5907.[57] M. Thomas, M. Brehm, O. Hollóczki, B. Kirchner, How can a carbene be active in an ionic liquid? Chem. Eur. J. 20 (6) (2014) 1622-1629.[58] H. Stetter, H. Kuhlmann, The catalyzed nucleophilic addition of aldehydes to electrophilic double bonds, Organic Reactions 40 (1991) 407-496.[59] J.P. Hallett, C.L. Liotta, G. Ranieri, T. Welton, Charge screening in the SN2 reaction of charged electrophiles and charged nucleophiles: An ionic liquid effect, J. Org. Chem. 74 (5) (2009) 1864-1868.[60] Z. Kelemen, O. Hollóczki, J. Nagy, L. Nyulászi, An organocatalytic ionic liquid, Org. Biomol. Chem. 9 (15) (2011) 5362-5364.[61] K. Fukui, H. Fujimoto, Frontier orbitals and reaction paths: selected papers of Kenichi Fukui, Vol: World Scientific1997.[62] R. Hoffmann, A chemical and theoretical way to look at bonding on surfaces, Rev. Mod. Phys. 60 (3) (1988) 601. |