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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
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Abstract
Przedmiotem wynalazku jest salicylan alkoksymetylobis(2-hydroksyetylo)-metyloamoniowy o wzorze ogólnym 1, w którym R oznacza łańcuch węglowy zawierający od 1 do 18 atomów węgla mający zastosowanie jako środek powierzchniowo czynny oraz sposób jego otrzymywania. Sposób otrzymywania salicylanu alkoksymetylobis(2-hydroksyetylo)-metyloamoniowego polega na tym, że chlorek alkoksymetylobis(2-hydroksyetylo)-metyloamoniowy rozpuszcza się w alkoholu alifatycznym o długości łańcucha węglowego od jeden do czterech atomów węgla, lub ich mieszaninie, korzystnie w metanolu, po czym poddaje się reakcji z solą sodową lub potasową kwasu salicylowego w stosunku molowym 1:1 do 1:2, korzystnie 1:1, w temperaturze od 20 do 50°C, korzystnie 30°C, w czasie co najmniej 5 minut, a wytrąconą nieorganiczną sól odsącza się pod zmniejszonym ciśnieniem. Z kolei z otrzymanego przesączu odparowuje się rozpuszczalnik, następnie dodaje się bezwodnego acetonu w celu oczyszczenia produktu, dalej po odparowaniu acetonu pozostałość suszy się w warunkach obniżonego ciśnienia.The present invention relates to alkoxymethyl bis (2-hydroxyethyl) methylammonium salicylate of the general formula 1, wherein R is a carbon chain containing from 1 to 18 carbon atoms used as a surfactant and a method for its preparation. The method for obtaining alkoxymethylbis (2-hydroxyethyl) methylammonium salicylate is that alkoxymethylbis (2-hydroxyethyl) methylammonium chloride dissolves in an aliphatic alcohol with a carbon chain length of one to four carbon atoms, or a mixture thereof, preferably in methanol, after which is reacted with the sodium or potassium salt of salicylic acid in a molar ratio of 1: 1 to 1: 2, preferably 1: 1, at a temperature of 20 to 50 ° C, preferably 30 ° C, for at least 5 minutes, and precipitated the inorganic salt is filtered off with suction. Then the solvent is evaporated from the filtrate obtained, then anhydrous acetone is added to purify the product, and the residue is dried under reduced pressure after evaporation of the acetone.
PL410437A2014-12-082014-12-08Alkoxymethyl bis(2-hydroxyethyl)methylammonium salicylate and method for obtaining it
PL226790B1
(en)
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