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Study on Synthesis, Characterization and Properties of Aryl Guanidinium Salts Ionic Liquids

Author: XuWu
Tutor: LinYingJie；DuanHaiFeng
School: Jilin University
Course: Organic Chemistry
Keywords: Guanidine salt Guanidine Synthesis Characterization Aryl ionic liquids
CLC: O621.3
Type: Master's thesis
Year: 2011
Downloads: 45
Quote: 0
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Abstract


Ionic liquids are a promising green solvent . It has many advantages compared with traditional organic solvents . Especially ionic liquid is almost zero vapor pressure, and high thermal stability and exceptional solvent resistance has made it to be an important chemical in the chemical industry solvent . The ionic liquid comprising an organic salt of an organic cation and an inorganic or organic anion . Where there is a combination of a large number of anions and cations . Accordingly, many of the physical and chemical properties of ionic liquids can be adjusted in advance by changing the composition of the anion and cation . This thesis by aryl introduced into the the guanidine salt cations up to study the nature of the variation of the guanidine salt ionic liquid . Main comprising: using oxalyl chloride method, the use of the tetraalkylurea \. On this basis , the synthesis of aryl five guanidine and halohydrocarbon reaction 21 A hexaalkyl guanidinium halide salt , followed by ion exchange synthesized seven kinds of halogen - free guanidine salt ionic liquid . The guanidine salt ionic liquid synthesis and more than the NMR characterization . Solubility , melting point and thermal stability of the ionic liquid on the part of a guanidine salt at the same time . The study found: guanidine cationic aromatic ring different substituents on their changes in the melting point of the great influence . [PF6] as anionic aryl guanidine ionic liquids , with the growth of the N -alkyl chain , the melting point of the aryl guanidine decreased ( C2 -C5 ) different classes aryl substituents on the guanidine salt in an organic solvent solubility also has a great influence . anion by halogen anion exchange [PF6] , the the aryl guanidine salt ion liquid thermal stability will be substantially increased synthesis of this thesis the aryl guanidine and its corresponding guanidine halide salt ions liquid made ??for further research and application of such organic guanidine salt ionic liquid explore .

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CLC: > Mathematical sciences and chemical > Chemistry > Organic Chemistry > Organic Chemistry general issues > Synthetic organic chemistry
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