Первый московский медицинский институт им.И.М.Сеченова
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Application filed by Институт биохимии им.А.Н.Баха АН СССР, Первый московский медицинский институт им.И.М.СеченоваfiledCriticalИнститут биохимии им.А.Н.Баха АН СССР
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Предмет изобретени Способ очистки четвертичных аммониевых солей путем перекристаллизации, отличаюш , и и с тем, что, с целью упрощени про- 5 цесса и увеличени выхода целевых продуктов, перекристаллизацию ведут путем обработки водных растворов четвертичных аммониевых солей эфиром с последующим упариванием водноорганического сло .The subject of the invention. The method of purification of quaternary ammonium salts by recrystallization is different, and so that, in order to simplify the process and increase the yield of the target products, recrystallization is carried out by treating aqueous solutions of quaternary ammonium salts with ether, followed by evaporation of the aqueous organic layer.
SU1870432A1973-01-081973-01-08
The method of purification of the Quaternary ammonium salts
SU464578A1
(en)
PROCESS FOR OBTAINING AQUEOUS SOLUTIONS CONCENTRATED FROM ACRYLAMIDE AND METHACRYLAMIDE BY CATALYTIC ADDITION OF WATER TO ACRYLONITRILL AND METACRYLONITRILE
A procedure for the preparation of (3-trifluormethylphenoxy) - (4-chlorophenyl) acetate of 2-acetamidoetilo. (Machine-translation by Google Translate, not legally binding)