Triethanolamine (0.01 mol) was reacted with myristic acid (0.02 mol) and (0.03 mol) to obtain the triethanolamine diester (2a) and triester (2b), respectively. The mixture was refluxed at 110 °C in the presence of toluene as solvent and 0.001 wt % P-toluene sulfonic acid. The reaction was completed when the theoretical amount of water was removed. The mixture was cooled and toluene was vacuum evaporated to obtain the diethyl ethanolamine tridecantrioate (2a) and triethyl amine tridecantrioate (2b).
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