1-bromohexane (98%), 1-bromooctane (99%), 1-bromodecane (98%) and 1-bromododecane (95%) were obtained from Sigma-Aldrich Co. (St. Louis, MO, USA). Dimethylamine hydrochloride (99%) was purchased from Acros Organics company (Geel, Belgium). Diethyl ether (99.5%), ethanol (99.8%), acetone (99.5%), sodium hydroxide (99%) and ethyl chloroacetate (99%) were purchased from POCH S.A. (Gliwice, Poland). Deionized water used for synthesis had a specific conductivity not higher than 0.4 μS∙cm−1 at 20 °C.
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