1-Bromodecane participates in alkylation of pentaerythritol and introduces two lipophilic groups in pentaerythritol. It reacts with 1,2-dimethylimidazole to yield 1-decyl-2,3-dimethylimidazolium bromide.
Shake the it with H2SO4, wash with H2O, dry with K2CO3, and fractionally distil it. [Beilstein 1 IV 470.]
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