Preparation of novel functionalized ionic liquid: Green, stable, and reusable catalyst for the synthesis of new 2-(phenylsulfonyl)-1H-benzo[a]pyrano[2,3-c]phenazin-3-amine derivatives

Synthesis of the ionic liquid 1,2‐dimethyl‐3‐butylimidazole bromide salt and its application in phenolic‐formaldehyde‐resin‐based conductive materials

“…Figure3ashows the FT-IR spectrum of [DMBIm]Br. The distinct bands at 3432 cm À1 (N H), 3132, cm À1 (C H), 3069 cm À1 (═CH), 2960 and 2877 cm À1 (CH 2 ), 1632 cm À1 (C═C), 1590 and 1533 cm À1 ( CH), 1465 cm À1 (C N), and 1241 cm À1 (C C) signify the successful reaction of 1,2-dimethylimidazole with bromobutane to afford [DMBIm]Br [28][29][30]. Figure3bdisplays the 1 H NMR spectrum of [DMBIm]Br.…”