An Improved Synthesis of Triethylaminium Salts of Acylated Sulfuric Acids

Abstract

A series of triethylaminium salt of acylated sulfuric acids [1] was synthesized in excellent yield from the triethylaminium salt of a higher fatty acid and the adduct of triethylamine-sulfur trioxide in 1, 2-dichloroethane under mild reaction conditions. R-C =O -O-SO₂-O^(-) HN⁽⁺⁾(C₂H₅)₃ [1]
The melting points of the salts thus obtained were as follows mp 35.5-38.2°C for lauroyl group (R=C₁₁H₂₃), mp 46.0-47.5°C for myristoyl group (R=C₁₃H₂₇), mp 57.5-60.0°C for palmitoyl group (R=-C₁₅H₃₁) and mp 64.0-67.0°C for stearoyl group (R=C₁₇H₃₅).