SU394368A1 - METHOD OF OBTAINING EPOXY COMPOUNDS - Google Patents
METHOD OF OBTAINING EPOXY COMPOUNDSInfo
- Publication number
- SU394368A1 SU394368A1 SU1623862A SU1623862A SU394368A1 SU 394368 A1 SU394368 A1 SU 394368A1 SU 1623862 A SU1623862 A SU 1623862A SU 1623862 A SU1623862 A SU 1623862A SU 394368 A1 SU394368 A1 SU 394368A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- epoxy compounds
- target product
- cyanamide
- hydrogen peroxide
- compounds
- Prior art date
Links
Landscapes
- Epoxy Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Изобретение относитс к способам получени циклических эфиров, в частности к способу получени эпоксисоединенпй.This invention relates to processes for the preparation of cyclic ethers, in particular, to a process for the preparation of epoxy compounds.
Известен способ получени эпоксисоедннений путем окислени непредельных соединений надфталевой кислотой с выходом целевого продукта 60% от теории.A known method for the preparation of epoxy compounds by the oxidation of unsaturated compounds with naphthalic acid yields a target product of 60% of theory.
При осуп,ествленип известного способа получени эпоксисоединений выход целевого продукта низок, процесс очень взрывоопасен и образуютс трудноутплизнруемые отходы.With a small pox, as a known method for producing epoxy compounds, the yield of the desired product is low, the process is highly explosive and it is difficult to find waste.
С целью устранени указанных недостатков предлагаетс в способе получени эпоксисоединений окисление этиленовых соединений вести перекисью водорода, например, 30-99%-ной, в присутствии цианамида, лучше в мол рнЕ11х или больших количествах по отношенню к непредельному соединению при температуре не выше 70°С с последующим выделением целевого продукта известными приемами. Выход целевого продукта до 94,5% от теории.In order to eliminate these drawbacks, it is proposed in the method of producing epoxy compounds to oxidize ethylene compounds with hydrogen peroxide, for example, 30-99%, in the presence of cyanamide, preferably in molar11 or large amounts relative to unsaturated compound at a temperature not exceeding 70 ° C. the subsequent selection of the target product by known techniques. The yield of the target product to 94.5% of theory.
Пример. К раствору 10,4 г (0,1 г-моль стирола и 6,3 г (0,15 г-моль) цианамида в 40 мл метанола при перемешивании прибавл ют при температуре 25-30°С в течение 1,5 час 6 мл 85%-ной перекиси водорода. рН среды поддерживают на прот жении окислени в пределах 8-9 прибавлением 10%-ного раствора едкого натра. После ирибавлени Example. To a solution of 10.4 g (0.1 g mol of styrene and 6.3 g (0.15 g mol) of cyanamide in 40 ml of methanol with stirring was added at a temperature of 25-30 ° C for 1.5 hours ml of 85% hydrogen peroxide. The pH of the medium is maintained within the range of 8-9 by the addition of 10% sodium hydroxide solution during oxidation.
перекиси водорода перемешивание продолжают еше 2,5 час и оставл ют реакционную смесь на 12 час, после чего прибавл ют 100 мл воды и продукт извлекают хлороформом (4X15). Хлороформенные выт жкп сушат над сульфатом магпи , отгон ют хлороформ и перегон ют в вакууме. Получено 10,7 г (94,5% от теории) окиси стирола сHydrogen peroxide stirring is continued for more than 2.5 hours and the reaction mixture is left for 12 hours, after which 100 ml of water is added and the product is taken up in chloroform (4X15). The chloroform extracts are dried over magnesium sulfate, chloroform is distilled off and distilled in vacuo. Received 10.7 g (94.5% of theory) of styrene oxide with
Т. КИП. 82-84° (15 м.м рт. ст.).T. KIP. 82-84 ° (15 m. M. Mercury.).
1,5348;1.5348;
DD
d2«, 1,0522.d2 ", 1.0522.
Упариванием водного сло иолучают 8,5 i мочевины.Evaporation of the aqueous layer yields 8.5 i of urea.
Аналогично получают окись циклогексаиаSimilarly, cyclohexa oxide is obtained.
С т. кип. 129-130°, njWith t. Kip. 129-130 °, nj
,4550, 0,9791,, 4550, 0.9791,
глицидол с т. . 60° (25 мм рт. ст.) пglycidol with t. 60 ° (25 mmHg) p
2020
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1623862A SU394368A1 (en) | 1971-02-22 | 1971-02-22 | METHOD OF OBTAINING EPOXY COMPOUNDS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1623862A SU394368A1 (en) | 1971-02-22 | 1971-02-22 | METHOD OF OBTAINING EPOXY COMPOUNDS |
Publications (1)
Publication Number | Publication Date |
---|---|
SU394368A1 true SU394368A1 (en) | 1973-08-22 |
Family
ID=20466458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1623862A SU394368A1 (en) | 1971-02-22 | 1971-02-22 | METHOD OF OBTAINING EPOXY COMPOUNDS |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU394368A1 (en) |
-
1971
- 1971-02-22 SU SU1623862A patent/SU394368A1/en active
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