SU69877A1 - Method for preparing ionone and its homologs - Google Patents
Method for preparing ionone and its homologsInfo
- Publication number
- SU69877A1 SU69877A1 SU4137A SU4137A SU69877A1 SU 69877 A1 SU69877 A1 SU 69877A1 SU 4137 A SU4137 A SU 4137A SU 4137 A SU4137 A SU 4137A SU 69877 A1 SU69877 A1 SU 69877A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ionone
- homologs
- preparing
- product
- cyclization
- Prior art date
Links
- 229930002839 ionones Natural products 0.000 title description 8
- SFEOKXHPFMOVRM-BQYQJAHWSA-N Ionone Chemical compound CC(=O)\C=C\C1C(=C)CCCC1(C)C SFEOKXHPFMOVRM-BQYQJAHWSA-N 0.000 title description 5
- 238000007363 ring formation reaction Methods 0.000 description 7
- 238000009835 boiling Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 3
- 238000006317 isomerization reaction Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- JXJIQCXXJGRKRJ-KOOBJXAQSA-N pseudoionone Chemical compound CC(C)=CCC\C(C)=C\C=C\C(C)=O JXJIQCXXJGRKRJ-KOOBJXAQSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Description
В процессе получени ионона и его гомологов путем циклизации псевдоиононов в качестве промежуточного продукта образуетс высококип щий продукт, содержащий гидроксильную группу, после отщеплени которой образуетсй собственно ионон. Этот продукт находитс в равновесии с иононом и остаетс всегда среди продуктов изомеризации псевдоиононов в количестве до 10%. Попытка превращени этого гидроксилсодержащего продукта в соответствующий ионон в обычных услови х циклизации псевдоионона не привела к положительным результатам. Согласно изобретению оказалось, что если этот промежуточный продукт заранее добавл ть к псевдоионону в количествах до 10%, то в результате изомеризации не образуетс новых количеств высококип щей примеси, а весь загруженный псевдоионон превращаетс в соответствующий ионон. Таким образом не происходит наОтв . редактор М. М. Акиш нIn the process of obtaining ionon and its homologs by cyclization of pseudo-ionones, a high boiling product containing a hydroxyl group is formed as an intermediate product, after which the ionon itself is formed. This product is in equilibrium with the ionone and always remains among the products of the isomerization of pseudo-ionons in an amount up to 10%. An attempt to transform this hydroxyl-containing product into the corresponding ionone under the usual conditions of cyclization of pseudo-ionone did not lead to positive results. According to the invention, it turned out that if this intermediate product is preliminarily added to a pseudoionon in amounts up to 10%, then isomerization does not result in the formation of new quantities of high boiling impurities, and the entire loaded pseudoionon is converted into the corresponding ionone. In this way, does not occur onEt. editor M. M. Akish n
6 Свод в. 1.6 Code in. one.
апливани этого промежуточного продукта, так как он постепенно превращаетс в ионон.as this intermediate is progressively converted into ionone.
Прим ер. В апйарат дл изомеризации загружают 45 кг псевдоионона VI 5 кг промежуточного продукта циклизации и провод т циклизацию обычным путем, нагреванием до 38° с равным по весу количеством 60% серной кислоты и растворител в течение 2-2,5 часов, с последующей нейтрализацией масл ного сло , отгонкой растворител и перегонкой в вакууме.Approx. 45 kg of pseudo-ionon VI 5 kg of the intermediate cyclization product are loaded into an isomerization unit and cyclization is carried out in the usual way, by heating to 38 ° C with an equal weight of 60% sulfuric acid and solvent for 2-2.5 hours, followed by neutralization of the oil layer, distillation of the solvent and distillation in vacuum.
В результате получаетс нонон в тех же количествах, как и из 50 кг псевдоионона.As a result, nonon is obtained in the same quantities as from 50 kg of pseudoionone.
Предмет изобретени Subject invention
Способ получени ионона и его гомологов циклизацией соответствующих псевдопродуктов, отличающийс тем, что с целью повыщени выхода целевого продукта циклизации подвергают смесь псевдопродукта с высококип щим отходом процесса циклизации.A method of producing ionon and its homologs by cyclization of the corresponding pseudo-products, characterized in that in order to increase the yield of the target cyclization product, a mixture of a pseudo-product with a high boiling waste of the cyclization process is subjected.
Редактор В. И. Кунджул Editor V.I. Kunzhul
8181
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4137A SU69877A1 (en) | 1944-12-27 | Method for preparing ionone and its homologs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4137A SU69877A1 (en) | 1944-12-27 | Method for preparing ionone and its homologs |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU3460A Division SU58673A1 (en) | 1937-06-19 | 1937-06-19 | Catalytic heater for air-cooled internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU4528A1 SU4528A1 (en) | 1928-08-31 |
| SU69877A1 true SU69877A1 (en) | 1947-12-31 |
Family
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