Synthesis And Applications Of Glycerol Derivatives Based And Biodegradable Ionic Liquids

Ionic liquids (ILs) are salts which have low melting point and composed entirely of organic cation and inorganic or organic anion. Recently they have been received widely much attentions and widely researched for Green chemistry as environmental-friendly solvents and catalyst, for their outstanding chemical and physical properties. Synthesis ionic liquid from biorenewable resource is the focus of recently researches. This thesis was working on synthesis ILs based on biorenewable resource: glycerol derivatives and synthesis some ILs known for their biodegradability, also investigate the applications of these environmentally-friendly ILs.In this paper, dihydroxyl, diester functionalized ILs based on methylimidazolium, pyridinium, alkyltriethylammonium and butylimidazolium from glycerol derivatives and biodegradable ILs from methylimidazole contain ester or amide group were synthesized and characterized by 1H NMR, 13C NMR and FT-IR.Glycerol is the by-product of biodiesel by transesterificaion of nature oils or fats, as the production of biodiesel increasing, glycerol is more available and much cheaper now. This paper focuses on prepare dihydroxyl and diester functionalized ILs from biorenewable glycerol derivatives in an efficient and convenient general method. Atom economic reaction was was utilized for synthesis acetate IL. We determined the ILs'water-solubility and their miscibility with organic solvents, investigated their toxicity and the development of their applicationes: Bio-polymers and carbohydrates dissolve in ILs; Dihydroxyl functionalized non-water-soluble ionic liquids on the extraction of trace boric acid from water.ILs contained ester, amide functionalized groups have been confirmed biodegradable in the natural environment. So we could use of such ILs as environment-friendly solvents in organic reactions. It is a good alternative solvent of traditional highly toxic organic molecules compounds. Ionic liquid solvent such as participation in the catalytic asymmetric hydrogenation showed a nice performance, close to the method of using methanol as solvent.