SU146312A1 - The method of obtaining 4-beta-hydroxyethyl-morpholine - Google Patents
The method of obtaining 4-beta-hydroxyethyl-morpholineInfo
- Publication number
- SU146312A1 SU146312A1 SU699946A SU699946A SU146312A1 SU 146312 A1 SU146312 A1 SU 146312A1 SU 699946 A SU699946 A SU 699946A SU 699946 A SU699946 A SU 699946A SU 146312 A1 SU146312 A1 SU 146312A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydroxyethyl
- morpholine
- obtaining
- beta
- monoethanolamine
- Prior art date
Links
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Description
Известен способ получени 4-(р-оксиэтил) морфолина путем кон .денсации р, р-дихлордиэтилового эфира и моноэтаноламина.A known method for the preparation of 4- (p-hydroxyethyl) morpholine by condensation of p, p-dichlorodiethyl ether and monoethanolamine.
Выход целевого продукта в указанном способе составл ет примерно 70%.The yield of the desired product in this method is about 70%.
По предлагаемому способу, с целью увеличени выхода 4-(р-оксиэтил ) морфолина, разгонку продуктов конденсации ведут в присутствии едкой щелочи.According to the proposed method, in order to increase the yield of 4- (p-hydroxyethyl) morpholine, the distillation of condensation products is carried out in the presence of caustic alkali.
Введение твердой щелочи обеспечивает разложение хлоргидратов моноэтаноламина, тем самым уменьща возможность протекани пирогенетических процессов при разгонке. Выход 4-(р-оксиэтил) морфолина при этом увеличиваетс до 90% и более.The introduction of solid alkali provides for the decomposition of monoethanolamine chlorohydrates, thereby reducing the possibility of pyrogenetic processes during distillation. The yield of 4- (p-hydroxyethyl) morpholine in this case increases to 90% or more.
Пример. 183 вес. ч. (3 мол ) моноэтаноламина нагревают до температуры 80-100° и после удалени источника нагревани постепенно при перемешивании прибавл ют 143 вес. ч. (1 моль) р, р-дихлордиэтилового эфира. Скорость прибавлени эфира регулируют таким образом, чтобы температура реакционной смеси не превыщала 160- 170°. При этой же температуре продолжают перемешивание еще в течение часа, после чего смесь охлаждают до температуры 30-40° и добавл ют 85 вес. ч. (около 2 молей) порошкообразного едкого натра. Затем смесь подвергают фракционированной вакуумной перегонке в токе азота- При-этом сначала отгон етс вода и моноэтаноламин, а затем .4-(р-оксиэтил) морфолин (температура кипени 117-118°). Выход це ,левого продукта 120 вес. ч. (91,6% от теоретического).Example. 183 weight. part (3 mol) of monoethanolamine is heated to a temperature of 80-100 °, and after removing the heat source, 143 weight is gradually added with stirring. hours (1 mol) p, p-dichlorodiethyl ether. The rate of addition of the ether is controlled in such a way that the temperature of the reaction mixture does not exceed 160-170 °. Stirring is continued at the same temperature for another hour, after which the mixture is cooled to a temperature of 30–40 ° and 85 wt. including (about 2 moles) powdered caustic soda. The mixture is then subjected to fractionated vacuum distillation in a stream of nitrogen. In this case, water and monoethanolamine are first distilled, and then .4- (p-hydroxyethyl) morpholine (boiling point 117-118 °). Output tse, left product 120 weight. hours (91.6% of theoretical).
Предлагаемый способ позвол ет увеличить выход 4-(р-оксиэтил)морфолина , примен емого дл получени антигистаминных препаратов .The proposed method allows an increase in the yield of 4- (p-hydroxyethyl) morpholine used to produce antihistamine preparations.
№ 146312- 2 Предмет изобретени No. 146312- 2 The subject invention
Способ получени 4-(р-оксиэтил) морфолина путем конденсации Р, р-дихлордиэтилового эфира и моноэтаноламина, отличающийс тем, что, с целью увеличени выхода, разгонку продуктов конденсации ведут в присутствии едкой щелочи.The method of obtaining 4- (p-hydroxyethyl) morpholine by condensation of P, p-dichlorodiethyl ether and monoethanolamine, characterized in that, to increase the yield, the distillation of condensation products is carried out in the presence of caustic alkali.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU699946A SU146312A1 (en) | 1961-03-01 | 1961-03-01 | The method of obtaining 4-beta-hydroxyethyl-morpholine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU699946A SU146312A1 (en) | 1961-03-01 | 1961-03-01 | The method of obtaining 4-beta-hydroxyethyl-morpholine |
Publications (1)
Publication Number | Publication Date |
---|---|
SU146312A1 true SU146312A1 (en) | 1961-11-30 |
Family
ID=48301786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU699946A SU146312A1 (en) | 1961-03-01 | 1961-03-01 | The method of obtaining 4-beta-hydroxyethyl-morpholine |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU146312A1 (en) |
-
1961
- 1961-03-01 SU SU699946A patent/SU146312A1/en active
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