SU666173A1 - Method of obtaining piridininium-1,1,2,3,3-pentacyanpropenide - Google Patents
Method of obtaining piridininium-1,1,2,3,3-pentacyanpropenideInfo
- Publication number
- SU666173A1 SU666173A1 SU772545798A SU2545798A SU666173A1 SU 666173 A1 SU666173 A1 SU 666173A1 SU 772545798 A SU772545798 A SU 772545798A SU 2545798 A SU2545798 A SU 2545798A SU 666173 A1 SU666173 A1 SU 666173A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining
- pentacyanpropenide
- piridininium
- yield
- pyridine
- Prior art date
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- Pyridine Compounds (AREA)
Description
1one
Изобретение огносигс к усовершенсг- вованному способу получени пиридиний 1,1,2,3,3-пентацианпропенида формулыThe invention of ognosigs to an improved method for the preparation of pyridium 1,1,2,3,3-pentacyanpropenide of the formula
C-KC-K
f.S 2 С- С - ICK) 2® -mjf.S 2 C-C - ICK) 2® -mj
который находит применение в синтезе по лимеров.which is used in the synthesis of polymers.
Известен способ получени пиридиний- -1,1,2,3,3-пантацианпропенида реакцией тетрацианэтилена с пиридином в воде и ацетоне при -SO С в атмосфере азота с выходом 80% tl.A known method for producing pyridinium-1, 1, 2, 3, 3-pantacyanpropenide is the reaction of tetracyanoethylene with pyridine in water and acetone at -SO C in a nitrogen atmosphere with a yield of 80% tl.
К недостаткам известного способа от нос тс довольно невысокий выход целевои го продукта, проведение процесса при низкой температуре в атмосфере азота, что усложн ет процесс.The disadvantages of this method are relatively low yield of the target product, carrying out the process at low temperature in a nitrogen atmosphere, which complicates the process.
Целью изобретени вл етс повыше- ние выхода целевого продукта и упрощение процесса.The aim of the invention is to increase the yield of the target product and simplify the process.
Эта цель достигаетс тем, что тетранкйнэгипен подвергают взаимодействию сThis goal is achieved by the fact that tetrankaygipen interact with
пиридином Б воде и ацетоне в присутствии муравьиной кислоты при (+8)-(+30) С.pyridine B water and acetone in the presence of formic acid at (+8) - (+ 30) C.
Применение муравьиной кислоты позвол ет проводить процесс при (+8)-(+30) С без использсжани азота и получить целевой продукт с выходом 91-93%.The use of formic acid allows to carry out the process at (+8) - (+ 30) С without using nitrogen and to obtain the target product with a yield of 91-93%.
Пример. К охлажденному до (+8) (+1О )С раствору 20 г тетрацианэтилена в 8О мл ацетона приливают раствор 11,0 г концентрированной муравьиной кислоты (рв.1,22) в ЗО мл дистиллированной воды и с:разу вслед за этим 7 мл пиридина, наблюда повышение температуры до (+25 )- (+30) С и выделение углекислого газа.Example. A solution of 11.0 g of concentrated formic acid (pp. 1, 22) in 30 ml of distilled water of distilled water is poured into a solution of 20 g of tetracyanethylene in 8O ml of acetone cooled to (+8) (+ 1O) and Z 7 ml pyridine, observed a rise in temperature to (+25) - (+30) C and the release of carbon dioxide.
После того, как выделение газа прекратитс , от реакционной массы отгон ют ацетон в вакууме, при этом выпадают кристаллы целевого продукта. Выход 17,9 г (93%), т.пл. 165-16бс (по литературным данным т.пл. 167-168С).After the evolution of gas ceases, acetone is distilled off from the reaction mass under vacuum, and crystals of the desired product precipitate. Yield 17.9 g (93%), m.p. 165-16bs (according to literary data so pl. 167-168С).
Найдено, %: С 63,31; Н 2,24;ЛГ 34,16.Found,%: C 63.31; H 2.24; LH 34.16.
CiaHgATe.CiaHgATe.
Вычислено, %: С 63,41; Н 2,45; N34,14.Calculated,%: C 63.41; H 2.45; N34.14.
3434
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772545798A SU666173A1 (en) | 1977-11-21 | 1977-11-21 | Method of obtaining piridininium-1,1,2,3,3-pentacyanpropenide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772545798A SU666173A1 (en) | 1977-11-21 | 1977-11-21 | Method of obtaining piridininium-1,1,2,3,3-pentacyanpropenide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU666173A1 true SU666173A1 (en) | 1979-06-05 |
Family
ID=20734015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772545798A SU666173A1 (en) | 1977-11-21 | 1977-11-21 | Method of obtaining piridininium-1,1,2,3,3-pentacyanpropenide |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU666173A1 (en) |
-
1977
- 1977-11-21 SU SU772545798A patent/SU666173A1/en active
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