SU591457A1 - Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane - Google Patents
Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethaneInfo
- Publication number
- SU591457A1 SU591457A1 SU721852176A SU1852176A SU591457A1 SU 591457 A1 SU591457 A1 SU 591457A1 SU 721852176 A SU721852176 A SU 721852176A SU 1852176 A SU1852176 A SU 1852176A SU 591457 A1 SU591457 A1 SU 591457A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- dioxy
- diaminodiphenylmethane
- tetrahydrofuran
- technical
- fact
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
(54)СПОСОБ ОЧИСТКИ(54) CLEANING METHOD
3,3 -ДИОКСИ-4, 4-ДИАМИНОДИФЕИИЛМЕТАНА3,3 -DIOXI-4, 4-DIAMINODIPHEILEMETHANE
25% Ot технического продукта; т.пл. 222 224С.25% Ot technical product; m.p. 222 224C.
Найдено,%JC 67,49;Н 6,08; N12,19.Found,% JC 67.49; H 6.08; N12.19.
HI- «гО.Пример 3.9/0 кг 3, З-диокси-4, d -диаминодифенйлметана, обработанного тетрагидрофураном/ внос т в смесь 15,0 кг диметилформамида и 15,0 кг воды и нагревают до ЭвС в течение 1 час Целевой продукт выдел ют по примеру 1, Выход 4,8 кг, что соответствует 26,7% от технического продукта, т.пл.- 219- 221С. HI- "gO. Example 3.9 / 0 kg 3, 3-dioxy-4, d-diaminodiphenylmethane, treated with tetrahydrofuran / introduced into a mixture of 15.0 kg of dimethylformamide and 15.0 kg of water and heated to EVS for 1 hour. Target product excreted in Example 1, Yield 4.8 kg, which corresponds to 26.7% of the technical product, mp 219-210С.
Найдено,% е 67,80;Н 6,05; N 12,15.Found,% e 67.80; H 6.05; N 12.15.
Сочетание перекристаллизации техничёского продукта из водно-органической смеси, например водно-пиридиновой , с предварительной обработкой технического продукта тетрагидрофураном позвол ет получать чистый целевой продукт с содержанием основного вещества 99,3-99,8% не только в лабораторных услови х, но и в опытных. Предложенный способ прост в осуществлении, не требует специального оборудовани . The combination of recrystallization of the technical product from an aqueous-organic mixture, for example, water-pyridine, with pretreatment of a technical product with tetrahydrofuran makes it possible to obtain a pure target product with a content of the main substance of 99.3-99.8% not only in laboratory conditions, but also in experimental . The proposed method is simple to implement, does not require special equipment.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU721852176A SU591457A1 (en) | 1972-11-30 | 1972-11-30 | Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU721852176A SU591457A1 (en) | 1972-11-30 | 1972-11-30 | Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane |
Publications (1)
Publication Number | Publication Date |
---|---|
SU591457A1 true SU591457A1 (en) | 1978-02-05 |
Family
ID=20533658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU721852176A SU591457A1 (en) | 1972-11-30 | 1972-11-30 | Method of purifying 3,3-dioxy-4,4-diaminodiphenylmethane |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU591457A1 (en) |
-
1972
- 1972-11-30 SU SU721852176A patent/SU591457A1/en active
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