A 1,2,3-triazolate lithium salt with ionic liquid properties at room temperature

作者：Flachard D; Rolland J; Obadia M M; Serghei A; Bouchet R^*; Drockenmuller E^*

来源：Chemical Communications, 2018, 54(65): 9035-9038.

DOI：10.1039/c8cc04463e

A triethylene glycol-based 1,2,3-triazolate lithium salt with ionic liquid properties at room temperature is synthesized in three steps including copper-catalysed cycloaddition between alkyne-functionalized mono-methoxy-triethylene glycol and azidomethyl pivalate, followed by the deprotection of the methyl pivalate group and further lithiation of the 1H-1,2,3-triazole intermediate. The resulting lithium 1,2,3-triazolate is characterized by NMR spectroscopy, differential scanning calorimetry, themiogravimetric analysis, broadband dielectric spectroscopy, electro-chemical impedance spectroscopy and cyclic voltamperometry. This approach provides new opportunities for the further development of highly functional molecular and macromolecular lithium salts.

• 出版日期2018-8-21