SU100409A1 - The method of obtaining coumarin derivatives - Google Patents
The method of obtaining coumarin derivativesInfo
- Publication number
- SU100409A1 SU100409A1 SU449682A SU449682A SU100409A1 SU 100409 A1 SU100409 A1 SU 100409A1 SU 449682 A SU449682 A SU 449682A SU 449682 A SU449682 A SU 449682A SU 100409 A1 SU100409 A1 SU 100409A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coumarin derivatives
- obtaining
- obtaining coumarin
- diketene
- derivatives
- Prior art date
Links
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Pyrane Compounds (AREA)
Description
Производные кумарина по из зестныи способам получают из различных оксиароматических соединений путем взаимодействи их с различными веществами, содержащими карбонильную группу, например, ацетоуксусным эфиром, уксусным ангидридом и др.The coumarin derivatives of the zest method are obtained from various hydroxyaromatic compounds by reacting them with various substances containing a carbonyl group, for example, acetoacetic ester, acetic anhydride, etc.
Особенность предлагаемого способа состоит в том, что производные кумарина получают из оксиароматических соединений путем взаимодействи их с дикетеном в присутствии кислых или основных катализаторов, например, серной кис-поты, пиридина , хинолина и дрПример 1. Равномолекул рные количества флороглюцина и дикетена и 0,01 мол концентрированной серной кислоты смешивают при охлаждении с трехкратным весовым количеством этилового эфира, кип т тA feature of the proposed method is that coumarin derivatives are obtained from hydroxyaromatic compounds by reacting them with diketene in the presence of acidic or basic catalysts, for example, sulfuric acid, pyridine, quinoline, etc. Example 1. Equal molecular amounts of phloroglucin and diketene and 0.01 the mole of concentrated sulfuric acid is mixed while cooling with a threefold weight amount of ethyl ether, boiled
1,о часа и отгон ют фпр. Полученный 4-метил-5,7-диоксикумарин выдел ют из метилового спирта,1, about an hour and distilled fpr. The resulting 4-methyl-5,7-dioxycoumarin is separated from methyl alcohol,
П р и м е р 2. Равномолекул рные количества салицилового альдегида и дикетена и 0,01 мо,т пиридина смешивают с трехкратным весовым количеством бензола, кип т т час и отгон ют бензол. Полученный 3-ацетилкумарин выдел ют нз спирта.Example 2 Equal molecular amounts of salicylic aldehyde and diketene and 0.01 mo, t pyridine are mixed with three times the weight of benzene, boiled for an hour and the benzene is distilled off. The resulting 3-acetylcoumarin is isolated with nz alcohol.
Предмет изобретени Subject invention
Способ получени производных к марина из ароматических оксисоединений , отличающийс тем, что, с целью расширени сырьевой базы получение производных кумарина производ т путем взаимодействи ароматических оксисоединений с дикетеном в присутствии ката,пи аторов .The method of obtaining marina derivatives from aromatic hydroxy compounds, characterized in that, in order to expand the raw material base, coumarin derivatives are produced by reacting aromatic hydroxy compounds with diketene in the presence of catalysts, pythors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU449682A SU100409A1 (en) | 1954-03-12 | 1954-03-12 | The method of obtaining coumarin derivatives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU449682A SU100409A1 (en) | 1954-03-12 | 1954-03-12 | The method of obtaining coumarin derivatives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU100409A1 true SU100409A1 (en) | 1954-11-30 |
Family
ID=48374484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU449682A SU100409A1 (en) | 1954-03-12 | 1954-03-12 | The method of obtaining coumarin derivatives |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU100409A1 (en) |
-
1954
- 1954-03-12 SU SU449682A patent/SU100409A1/en active
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