SU497301A1 - Method for preparing tetramethylethylene glycol-2-ethoxyphosphorous acid methacrylic ester - Google Patents
Method for preparing tetramethylethylene glycol-2-ethoxyphosphorous acid methacrylic esterInfo
- Publication number
- SU497301A1 SU497301A1 SU2014268A SU2014268A SU497301A1 SU 497301 A1 SU497301 A1 SU 497301A1 SU 2014268 A SU2014268 A SU 2014268A SU 2014268 A SU2014268 A SU 2014268A SU 497301 A1 SU497301 A1 SU 497301A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ethoxyphosphorous
- methacrylic ester
- glycol
- tetramethylethylene glycol
- acid methacrylic
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
мещают 23 мл монометакрилового эфира этнленгликол , растворенного в 200 мл бензола и 15,3 мл пиридина. При температуре от 0С до - 10°С прикапывают 20,5 мл хлораигидрида тетрамети л этил енгликольфосфор истой кислоты . Реакцию ведут при перемешивании в течение 1 час. Выпавший сол нокислый пиридин отдел ют фильтрованием, фильтрат концентрируют и церегон ют.Substitute 23 ml of ethnylene glycol monomethacrylic ether, dissolved in 200 ml of benzene and 15.3 ml of pyridine. At a temperature of from 0 ° C to -10 ° C, 20.5 ml of tetramethyl chlorohydride glycol phosphoric acid is added dropwise. The reaction is carried out with stirring for 1 hour. Pyridine hydrochloride precipitated out is separated by filtration, the filtrate is concentrated and the catalyst is recovered.
Получают 23,04 г (64% от теоретического) продукта; т. кип. 130°С/2 мм рт. ст.23.04 g (64% of theory) of the product are obtained; m.p. 130 ° C / 2 mmHg Art.
Найдено, %: С 52,20; Н 8,02; Р 10,84;Found,%: C 52.20; H 8.02; R 10.84;
Вычислено, %: С 52,17; Н 7,61; Р 11,23.Calculated,%: C 52.17; H 7.61; R 11.23.
Пример 2. Синтез метакрилового эфира тетраметилэтиленгликоль - 2 - этоксифосфористой кислоты в серном эфире.Example 2. Synthesis of methacrylic ester of tetramethylethylene glycol - 2 - ethoxyphosphorous acid in sulfuric ether.
В реактор, снабженный мешалкой, капельной воронкой и обратным холодильником, помещают 23 мл монометакрилового эфира этиленгликол , растворенного в 200 мл серного эфира и 15,3 мл пиридина. При температуре от 0°С до -10°С прикапывают 20,5 мл хлорангидрида тетраметилэтиленгликольфосфористой кислоты. Реакцию ведут при перемешивании Б течение 1 час. Выпавший сол нокислый пиридин отдел ют фильтрованием, фильтрат концентрируют и перегон ют.In a reactor equipped with a stirrer, an addition funnel and a reflux condenser, 23 ml of ethylene glycol monomethacrylic ester dissolved in 200 ml of sulfuric ether and 15.3 ml of pyridine are placed. At a temperature of from 0 ° C to -10 ° C, 20.5 ml of tetramethylene glycol phosphoric acid chloride are added dropwise. The reaction is carried out with stirring B for 1 hour. Pyridine hydrochloride precipitated out is filtered, the filtrate is concentrated and distilled.
Выход продукта в этом случае составл ет 29,66 г (82,4% от теоретического).The product yield in this case is 29.66 g (82.4% of the theoretical).
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2014268A SU497301A1 (en) | 1974-04-09 | 1974-04-09 | Method for preparing tetramethylethylene glycol-2-ethoxyphosphorous acid methacrylic ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2014268A SU497301A1 (en) | 1974-04-09 | 1974-04-09 | Method for preparing tetramethylethylene glycol-2-ethoxyphosphorous acid methacrylic ester |
Publications (1)
Publication Number | Publication Date |
---|---|
SU497301A1 true SU497301A1 (en) | 1975-12-30 |
Family
ID=20581401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2014268A SU497301A1 (en) | 1974-04-09 | 1974-04-09 | Method for preparing tetramethylethylene glycol-2-ethoxyphosphorous acid methacrylic ester |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU497301A1 (en) |
-
1974
- 1974-04-09 SU SU2014268A patent/SU497301A1/en active
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