SU709615A1 - 3-propenyl-2-oxa-1,5-pentanediol diacetate as semiproduct for synthesis of 4-hexene-1,3-diol - Google Patents
3-propenyl-2-oxa-1,5-pentanediol diacetate as semiproduct for synthesis of 4-hexene-1,3-diol Download PDFInfo
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- SU709615A1 SU709615A1 SU772451959A SU2451959A SU709615A1 SU 709615 A1 SU709615 A1 SU 709615A1 SU 772451959 A SU772451959 A SU 772451959A SU 2451959 A SU2451959 A SU 2451959A SU 709615 A1 SU709615 A1 SU 709615A1
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- diol
- hexene
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- oxa
- propenyl
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Т а б л It- ц а 1T a b it It c 1
Диацетат 3-пропенил-2-окса-1,5-пентандиона может использоватьс в качестве полупродукта синтеза неописанного ранее в литературе 4-гексен-1 ,3-диола.3-Propenyl-2-oxa-1,5-pentanedione diacetate can be used as an intermediate for the synthesis of 4-hexene-1, 3-diol, not previously described in literature.
Пример 6.В колбу, снабженную мешалкой, наливают метанол и внос т 0,1-0,2 вес.% металлического натри , затем при перемешивании внос т полученный в примере 1 диацетат. Мольное соотношение диацетата к метанолу 1:1,2 - 1:1,7. Использу ректификационную колонну, отгон ют смесь метанола и метилацетата при атмосферном давлении. Остаток нейтрализуютExample 6. Methanol is poured into a flask equipped with a stirrer and 0.1-0.2 wt.% Of metallic sodium is introduced, and then the diacetate obtained in Example 1 is introduced with stirring. The molar ratio of diacetate to methanol is 1: 1.2 - 1: 1.7. Using a distillation column, the mixture of methanol and methyl acetate is distilled off at atmospheric pressure. The residue is neutralized
4-Гексен-1,3-диол может использо-1,3,5-гексатриена достигает 91,0ватьс в органическом синтезе, напри-93,5%.4-Hexene-1,3-diol can be used-1,3,5-hexatriene reaches 91.0 volts in organic synthesis, for example, 93.5%.
мер в синтезе 1,3,5-гексатриена или В табл. 3 привод тс несколькоmeasures in the synthesis of 1,3,5-hexatriene or table. 3 are several
метилциклопентадиенов.примеров использовани 4-гексен-1,3При термокаталитическом растепле- 50 диола в синтезе указанных соединении 4-гексен-1,3-диола выход ний. methylcyclopentadienes. examples of the use of 4-hexene-1,3. In the course of thermal catalytic conversion of a diol in the synthesis of the indicated compounds, 4-hexene-1,3-diol yields.
104-Гексен-1,3- Фосфат104-Hexene-1,3-Phosphate
-диол кальци 250 100 93,5calcium diol 250 100 93.5
114-Гексен-1,3- Силика-диол гель 230 99,3 83,2114-Hexene-1,3-Silica-diol gel 230 99.3 83.2
уксусной кислотой и разгон ют под вакуумом при 97с при 4 мм рт.ст., выдел ют 4-гексен-1,3-диол, d 4° 0/9953 п тэ 1,4643, MRj, вычислено 32,491, MR-D найдено 32,135,acetic acid and dispersed under vacuum at 97s at 4 mm Hg, 4-hexene-1,3-diol was recovered, d 4 ° 0/9953 pt te 1.4643, MRj, calculated 32,491, MR-D found 32,135,
Вычислено, %: С 62,07; и 10,34.Calculated,%: C 62.07; and 10.34.
СбН,ОSbn o
Найдено, %: С 61,94 Н 10,21.Found,%: C, 61.94; H, 10.21.
4-Гексен-1,3-диол представл ет собой прозрачную бесцветную жидкость, смешив.аюцуюс с водой во всех отношени х .4-Hexene-1,3-diol is a clear, colorless liquid, mixing water with water in all respects.
В табл. 2 привод тс некоторые примеры получени диола по методике, описанной в примере 6.In tab. 2 provides some examples of the preparation of a diol according to the procedure described in Example 6.
Таблица 2table 2
Таблица 3Table 3
1212
на-силикагеле 230 100 on silica gel 230 100
I t I t
ПаратолуолParatoluene
Сульфокислота . 90 100Sulfonic acid. 90,100
Как видно из табл. 3, выход 1,3,5-гексатриена составл ет до 93,5%, в то врем как по известному способу -76% (из 2-метил-5,б-дигидропирана ) 1 .As can be seen from the table. 3, the yield of 1,3,5-hexatriene is up to 93.5%, while by a known method -76% (from 2-methyl-5, b-dihydropyran) 1.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772451959A SU709615A1 (en) | 1977-02-14 | 1977-02-14 | 3-propenyl-2-oxa-1,5-pentanediol diacetate as semiproduct for synthesis of 4-hexene-1,3-diol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772451959A SU709615A1 (en) | 1977-02-14 | 1977-02-14 | 3-propenyl-2-oxa-1,5-pentanediol diacetate as semiproduct for synthesis of 4-hexene-1,3-diol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU709615A1 true SU709615A1 (en) | 1980-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772451959A SU709615A1 (en) | 1977-02-14 | 1977-02-14 | 3-propenyl-2-oxa-1,5-pentanediol diacetate as semiproduct for synthesis of 4-hexene-1,3-diol |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU709615A1 (en) |
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1977
- 1977-02-14 SU SU772451959A patent/SU709615A1/en active
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