Reply to the ‘Comment’ on “Lewis acidic ionic liquids of crown ether complex cations: preparation and applications in organic reactions” by M. Swad?ba-Kwa?ny, RSC Adv., 2017, 7, DOI: 10.1039/c7ra05921c

摘要

We published recently in RSC Advances a paper,1 reporting a new group of Lewis acidic ionic liquids that were prepared by the combination of a crown ether (18-crown-6) and alkali metal chloride (NaCl or KCl) and applied in organic reactions as catalysts. This study was developed by following our previous report of crown ether complex cations ionic liquids (CECILs).2 The typical structures of new CECILs are described in Fig. 1 (le). The anion structures were assigned using anionic mass spectra and Raman spectroscopy (Fig. 1, right), indicating the symmetry stretching vibration of M–Clx cluster. The abovementioned assignment was doubted by Ma?gorzata Swad′zba-Kwa′sny in the comment.