SU65038A1 - Ethanol Chlorination Method - Google Patents
Ethanol Chlorination MethodInfo
- Publication number
- SU65038A1 SU65038A1 SU4776A SU331979A SU65038A1 SU 65038 A1 SU65038 A1 SU 65038A1 SU 4776 A SU4776 A SU 4776A SU 331979 A SU331979 A SU 331979A SU 65038 A1 SU65038 A1 SU 65038A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chlorination method
- ethanol
- alcohol
- ethanol chlorination
- thiazole
- Prior art date
Links
Landscapes
- Pyridine Compounds (AREA)
- Thiazole And Isothizaole Compounds (AREA)
Description
1 Если условно считать х орацеталь елинстггнньм продуктом х/юригов ни , способным давать после конденсации с тииМ HeatHifl avHHo тивг-ол (не учнтыв образоиани хлорацетальдегида, хлорацетальдегидалкогол и дихло этилового эфира).1 If we conditionally consider x ocetal as an eligible product of x / yurigov, capable of producing chlorine acetaldehyde, chloroacetaldehyde alcohol and dichlo ethyl ether after condensation with tiMi-heat (not taken into account).
Положительное вли ние добавки лИридина или его хлоргидрата на выход 2-амино-тиазола иллюстрируетс таблицей.The positive effect of the addition of lIridine or its hydrochloride on the yield of 2-amino-thiazole is illustrated in the table.
Пример. Смесь 1500 мл (1200 г) 95-прэцентно1Го этилового спирта и 30 МЛ1 пиридина хлорируют при 20-25° до веса реакционной массы 1 1,9-1,95 кг, полученный продукт хлорировани смешивают с суспензией 200 г тиомочевины в 400 мл воды. Реакционаую смесь упаривают до температуры отход щих паров и остаток, содержащий хлоргидрат 2-амино-тиазола, подщелачивают 40-процентным растворам едкого натра. Вынавщий 2-ами о-ти1азол отфильтровывают и перекристаллизовывают из бензола.Example. A mixture of 1500 ml (1200 g) of 95% pure ethyl alcohol and 30 ML1 of pyridine is chlorinated at 20-25 ° to 1 weight of 1.9-1.95 kg, the resulting chlorination product is mixed with a suspension of 200 g of thiourea in 400 ml of water. The reaction mixture is evaporated to the temperature of the waste vapor and the residue containing 2-amino-thiazole hydrochloride, is made alkaline with 40% sodium hydroxide solution. The n-2-o-thiazole which is precipitated out is filtered off and recrystallized from benzene.
Выход чистого 2-a;vii-iHO--iHaj.j./i; с т. пл. 90° составл ет 200 г, т. е. 75% от вз той тиомочевит 1.The yield of pure 2-a; vii-iHO--iHaj.j./i; with t. pl. 90 ° is 200 g, i.e. 75% of withdrawn thiourea 1.
Пред м е т и з о б р е г е н t; кPREPARATION AND RESULTS; to
Способ хлорировани этилоиого спирта до монохлорацетальде1-ида и его ацетал пропзсканием элементарного хлора :К спирт, о т л и ч а ющ и и с тем, что д.г предупреждени образовани по.1нхлорпроиз1 О.;1,Hbfx вследствие ката.читического воздействи присутствующих следов солей железа к исходному спиртудобавл ют 1-2% пиридина или другое труднохлорируемо. третичное основание или же их спл нокислые соли.The method of chlorination of ethyl alcohol to monochloroacetalde-1-ida and its acetal by propelling elemental chlorine: To alcohol, so on and with the fact that it prevents the formation of 1xchloroproiz1 O.; 1, Hbfx due to kat.chicheskoe effects Traces of iron salts present are added to the initial alcohol; 1-2% pyridine or another is difficult to be chlorinated. tertiary base or their acid salts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4776A SU65038A1 (en) | 1944-03-25 | 1944-03-25 | Ethanol Chlorination Method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4776A SU65038A1 (en) | 1944-03-25 | 1944-03-25 | Ethanol Chlorination Method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU65038A1 true SU65038A1 (en) | 1944-11-30 |
Family
ID=51293227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU4776A SU65038A1 (en) | 1944-03-25 | 1944-03-25 | Ethanol Chlorination Method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU65038A1 (en) |
-
1944
- 1944-03-25 SU SU4776A patent/SU65038A1/en active
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