Facile, high-yielding preparation of pyrrolidinium, piperidinium, morpholinium and 2,3-dihydro-1H-isoindolinium salts and ionic liquids from secondary amines

Abstract

High yield and purity heterocyclic salts and ionic liquids can be obtained via the microwave irradiation of equimolar amounts of a secondary amine and an α,ω-dibromoalkane in water in the presence of K2CO3 followed by anion exchange.

Structurally flexible pyrrolidinium- and morpholinium-based ionic liquid electrolytes

“…Overall, the thermal stabilities are comparable to/or better than other Pyrr- and Morph-based ILs. 40–42…”

“…Overall, the thermal stabilities are comparable to/or better than other Pyrr-and Morph-based ILs. [40][41][42] The DSC data reveal that all the ILs are glass-forming liquids with glass transition temperature (T g ) values in the range from À59 to À80 1C (Fig. 2).…”

Reaktoren für spezielle technisch-chemische Prozesse: Mikrowellenreaktoren

“…Die Skalierbarkeit optimierter Methoden zur Synthese von ILs im Multigram-Bereich unter Mikrowellenbestrahlung wurde bereits im Jahr 2008 demonstriert (Erdmenger et al 2008 Reagens oder Katalysator veröffentlicht worden (Kalviri et al 2009;Costa et al 2013;Ward et al 2014;Siddiqui et al 2016).…”