SU516675A1 - The method of obtaining tetrachloroterephthalic acid dichlorohydride - Google Patents
The method of obtaining tetrachloroterephthalic acid dichlorohydrideInfo
- Publication number
- SU516675A1 SU516675A1 SU1982226A SU1982226A SU516675A1 SU 516675 A1 SU516675 A1 SU 516675A1 SU 1982226 A SU1982226 A SU 1982226A SU 1982226 A SU1982226 A SU 1982226A SU 516675 A1 SU516675 A1 SU 516675A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining
- tetrachloroterephthalic acid
- acid dichlorohydride
- tetrachloroterephthalic
- dichlorohydride
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
ко н барботвром, внос т 65,5 г (0,209 моль (X, , ОС -гексахлор-п-ксилола (ГХПК) 3,27 г Лб вес. %) йода и 150 мл хлорсульфоновой кислоты. Затем в образовавшуюс суспензию пропускают 59,5 г (,О,838 моль) хлора при 25ОС в течение Ю час. По окончании хлорировани выпавший осадок отфильтровывают,65.5 g (0.209 mol (X, OC-hexachloro-p-xylene (HCCP) 3.27 g Lb wt.% iodine and 150 ml of chlorosulfonic acid are added to the resulting suspension. 59, 5 g (o, 838 mol) of chlorine at 25 ° C for Yu hour. At the end of chlorination, the precipitated precipitate is filtered,
перекристаллизовывают из четьфеххлористого углероца и получают 61,9 гrecrystallized from carbon tetrachloride to obtain 61.9 g
ДХАТХТФК, т. пл. 141-1450С.DHATTHTPC, so pl. 141-1450С.
Из кислотного сло растворенный дихлорангицркц дополнительно экстрагируют |Четыреххлористым углеродом и получают 7,3 I/т. пп, 141-145°С (пит. данные..k пл. 133-145°С). Общий выход ДХАГХТсЖ 96,7%.From the acid layer, the dissolved dichlorangitsrkts are additionally extracted with carbon tetrachloride and 7.3 I / t are obtained. PP, 141-145 ° C (Pit. data..k pl. 133-145 ° C). The overall yield DHAGHTsZH 96.7%.
Найдено, %: С 28,4; С1 61,8.Found,%: C 28.4; C1 61.8.
.. 6 2Вычислено , %: С 28,19;: С1 62,4. Кислотный слой после экстракции выливают на лед, выпавший отфильтровывают , промывают водой, сушат и получают 1,37 г тетрахлортерефталевой кислоты , т. пл. 335-339°С (лит. данные: т. пл. 335°С)... 6 2Calculated,%: C 28.19 ;: C1 62.4. After extraction, the acidic layer is poured on ice, the precipitated is filtered off, washed with water, dried, and 1.37 g of tetrachloroterephthalic acid are obtained, m.p. 335-339 ° С (lit. data: mp. 335 ° С).
4four
Пример2,В услови х примера 1 хлорируют 65,5 г ГХПК в 15О мл хлорсульфоновой кислоты в присутствии 1,96 г ,(3 вес. %) йода. Получают 63,3 г (88,7% ДХАТХТФК, т. пл. а37°С.Example 2 Under the conditions of Example 1, 65.5 g of HCPA is chlorinated in 15O ml of chlorosulfonic acid in the presence of 1.96 g, (3 wt.%) Iodine. Get 63.3 g (88.7% DHATTHTPC, T. pl. A37 ° C.
ПримерЗ.В услови х примера 1 хлорируют 65,5 г ГХПК в 150 мл хлорсульфоновой кислоты при 85°С в ivHcyTствии 1,96 г (3 вес. %) йода в течение 1О час. Получают 51,5 г (86%) ДХАТХТФК, т, пл. 1390с.Example 3. Under the conditions of Example 1, 65.5 g of HCCP are chlorinated in 150 ml of chlorosulfonic acid at 85 ° C in ivHcyT with 1.96 g (3% by weight) of iodine for 1 o hour. Obtain 51.5 g (86%) DHATHTPA, t, pl. 1390s
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1982226A SU516675A1 (en) | 1974-01-03 | 1974-01-03 | The method of obtaining tetrachloroterephthalic acid dichlorohydride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1982226A SU516675A1 (en) | 1974-01-03 | 1974-01-03 | The method of obtaining tetrachloroterephthalic acid dichlorohydride |
Publications (1)
Publication Number | Publication Date |
---|---|
SU516675A1 true SU516675A1 (en) | 1976-06-05 |
Family
ID=20571390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1982226A SU516675A1 (en) | 1974-01-03 | 1974-01-03 | The method of obtaining tetrachloroterephthalic acid dichlorohydride |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU516675A1 (en) |
-
1974
- 1974-01-03 SU SU1982226A patent/SU516675A1/en active
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