SU51872A1 - The method of obtaining 2-hydroxy-3-liter-5-sulfonic acid of diphenyl - Google Patents
The method of obtaining 2-hydroxy-3-liter-5-sulfonic acid of diphenylInfo
- Publication number
- SU51872A1 SU51872A1 SU??-3139A SU3139A SU51872A1 SU 51872 A1 SU51872 A1 SU 51872A1 SU 3139 A SU3139 A SU 3139A SU 51872 A1 SU51872 A1 SU 51872A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydroxy
- sulfonic acid
- diphenyl
- liter
- obtaining
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Лвтором насто щего изобретени найдено, что если подвергнуть нитрованию обычными приемами 2-окси5-сульфокислоту дифенила, то получаетс ранее неизвестное соединение- 2-окси-3-нитро-5-сульфокислота дифенила . Строение полученного соединени доказываетс тем, что при гидролизе серной кислотой оно дает 2-окси3-нитродифенил с температурой плавлени 62°, а при дальнейшем действии азотной кислотой дает 2-окси3-5-динитродифенил .In the present invention, it is found that by subjecting the 2-hydroxy-5-sulfonic acid of diphenyl to nitration, a previously unknown compound 2-hydroxy-3-nitro-5-sulfonic acid of diphenyl is obtained. The structure of the obtained compound is proved by the fact that, when hydrolyzed with sulfuric acid, it gives 2-hydroxy-nitrodiphenyl with a melting point of 62 °, and upon further action with nitric acid it gives 2-hydroxy-5-5 dinitrodiphenyl.
Вместо 2-окси-5-сульфокислоты можно подвергнуть нитрованию сульфомассу , получаемую при сульфировании 2-оксидифенила.При восстановлении-2-окси- 3-нитро5-сульфокислоты оловом с сол ной кислотой, железом в кислой среде и другими восстановител ми, обычно примен емыми дл восстановлени нитросоединений в амины, получаетс 2-окси- 3-амино- 5-сульфокислоты дифенила .Instead of 2-hydroxy-5-sulfonic acid, the sulfated mass obtained by sulfonating 2-oxide-phenyl can be nitrated. When reducing 2-hydroxy-3-nitro-5-sulfonic acid with tin with hydrochloric acid, iron in an acidic medium and other reducing agents commonly used to reduce the nitro compounds to amines, 2-hydroxy-3-amino-5-sulfonic acid of diphenyl is obtained.
Пример 1. 34 г о-оксидифенила и 20,0 см концентрированной серной кислоты нагревались 6 часов на масл ной €ане при 115-125°. Сульфурационна масса разбавл лась 40 см воды, и к полученному водному раствору постепенно добавл ли раствор 17 г нитрата натри в 50 см воды. По окончании добавлени раствора нитрата натри слегка разогревша с масса застывала в сплошную кату желтых кристаллов. По охлаждении осадок отфильтровывали и промывали водой. Выход 48 г.Example 1. 34 g of o-oxyphenyl and 20.0 cm of concentrated sulfuric acid were heated for 6 hours on oil at 115-125 °. The sulfuration mass was diluted with 40 cm of water, and a solution of 17 g of sodium nitrate in 50 cm of water was gradually added to the resulting aqueous solution. At the end of the addition of the sodium nitrate solution, the mixture slightly warmed up and the mass solidified into a solid line of yellow crystals. After cooling, the precipitate was filtered and washed with water. Exit 48 g
По освобождении органическим растворителем .от небольшой примеси нитропроизводных 2-оксидифенила, перекристаллизацией из воды получаетс натриева соль 2-окси-З-нитро5-сульфокислоты дифенила в виде плоских желтых иголок, не содержаш ,их кристаллизационной воды. Навеска вещее; ва . . 0,1003 гUpon release of an organic solvent from a small admixture of nitro derivatives of 2-oxyphenyl, recrystallization from water results in the sodium salt of 2-hydroxy-3-nitro-5-sulfonic acid of diphenyl in the form of flat yellow needles, not containing their water of crystallization. Hitch more; va. . 0.1003 g
, 0,0221 г, 0.0221 g
Na.,SO,Na., SO,
. 7,26 W Na . 7.26 W Na
Вычислено дл (O|;NSNa . 7,15% Na Найдено „.,Calculated for (O |; NSNa. 7.15% Na Found „.,
Пример 2. Юг натриевой соли 2 - окси - 3 - нитро -5-сульфокислоты дифенила нагревали на вод ной бане с 60 см концентрированной сол ной кислоты, разбавленной равным объемом воды и б г олова. По обесцвечивании раствора реакционна массаExample 2. The south of the sodium salt of 2 - hydroxy - 3 - nitro-5-sulfonic acid of diphenyl was heated on a water bath with 60 cm of concentrated hydrochloric acid, diluted with an equal volume of water and 6 g of tin. By discoloration of the solution, the reaction mass
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-3139A SU51872A1 (en) | 1935-12-17 | 1935-12-17 | The method of obtaining 2-hydroxy-3-liter-5-sulfonic acid of diphenyl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU??-3139A SU51872A1 (en) | 1935-12-17 | 1935-12-17 | The method of obtaining 2-hydroxy-3-liter-5-sulfonic acid of diphenyl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU51872A1 true SU51872A1 (en) | 1936-11-30 |
Family
ID=48364255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU??-3139A SU51872A1 (en) | 1935-12-17 | 1935-12-17 | The method of obtaining 2-hydroxy-3-liter-5-sulfonic acid of diphenyl |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU51872A1 (en) |
-
1935
- 1935-12-17 SU SU??-3139A patent/SU51872A1/en active
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