Process for preparing ionic compounds comprising cations containing quaternary sp
2
-hybridized nitrogen atoms, which comprises reacting compounds containing a double-bonded nitrogen atom with a dialkyl sulfate with participation of both alkyl groups of the dialkyl sulfate and, if appropriate, subjecting the resulting ionic compound containing sulfate anions to an anion exchange.
制备含季
铵sp2杂化氮原子的离子化合物的过程包括将含有双键氮原子的化合物与二烷基
硫酸酯反应,参与二烷基
硫酸酯的两个烷基基团,并且如有必要,将含有
硫酸根离子的所得离子化合物进行阴离子交换。