SU39763A1 - The method of obtaining furfurall - Google Patents
The method of obtaining furfurallInfo
- Publication number
- SU39763A1 SU39763A1 SU142870A SU142870A SU39763A1 SU 39763 A1 SU39763 A1 SU 39763A1 SU 142870 A SU142870 A SU 142870A SU 142870 A SU142870 A SU 142870A SU 39763 A1 SU39763 A1 SU 39763A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- furfurall
- obtaining
- enanthol
- furfural
- alcohol
- Prior art date
Links
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
/ СбН,С -f СНз (СН,)-, СНО С„Н, СН СН (CH,)5CHO-f / SbN, С -f СНз (СН,) -, СНО С „Н, СН СН (CH,) 5CHO-f
Автором насто щего изобретени най- в присутствии щелочей. В результатеThe author of the present invention is in the presence of alkalis. As a result
дено, что можно получить альдегид |выщеуказанной конденсации получаетс еще более сильным запахом жасми- jс фурфуроль-энантол - низкокип щийThe fact that aldehyde can be obtained | the above condensation results in an even stronger smell of jasmy — jfurfural-enanthol — a low boiling point
на, если конденсацию энантола вести iкристаллический продукт. не с бензойным альдегидом, а с фур- ; Выход около от теоретичефуролом в водной или спиртовой средескогоon, if enanthol condensation is carried out by a crystalline product. not with benzoaldehyde, but with fur; The output of about theoretically fumed in water or alcohol medium
-СН СН-CH CH
С + СНз (СН2)5С -НС + СНз (СН2) 5С -Н
СН--СНCH - CH
i 1i 1
- СН СН (СН„)5 СНО + НоО- CH CH (CH n) 5 CHO + Noo
/ /
Пример. Равные по весу количе- руют при сильном перемещивании в воства фурфурола и энантола конденси- де или в спиртовом растворе в присутстаии слабой щел.очи (приблизительно 1%) в течение 24 - 72 часов, в зависимоети от избранной дл реакции среды. Затем раствор нейтрализуют, продукт реакции экстрагируврт органическим растворителем и после отгона растворител фракционируют под вакуумом (собираетс фракци от 150° при 17 мм давлени ). Выход кристаллического альдегиде фурфураль-а.нактрла не менее от теоретического.Example. Equal in weight are quantified with a strong displacement of furfural and enanthol condensate in an alcohol or in an alcohol solution in the presence of a weak alkali (approximately 1%) for 24 to 72 hours, depending on the medium selected for the reaction. Then the solution is neutralized, the reaction product is extracted with an organic solvent and, after distillation, the solvent is fractionated under vacuum (a fraction of 150 ° is collected at 17 mm pressure). The yield of crystalline aldehyde furfural-a. Naktrla is not less than the theoretical.
Предмет изобретени .The subject matter of the invention.
Способ получени фурфуралЪ-энантола , отличающийс тем, что фурфурол и энантол конденсируют в водной или спиртовой среде в присутствии щелочей.A method for producing furfural-enanthol, characterized in that furfural and enanthol are condensed in an aqueous or alcoholic medium in the presence of alkalis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU142870A SU39763A1 (en) | 1934-02-25 | 1934-02-25 | The method of obtaining furfurall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU142870A SU39763A1 (en) | 1934-02-25 | 1934-02-25 | The method of obtaining furfurall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU39763A1 true SU39763A1 (en) | 1934-11-30 |
Family
ID=48354953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU142870A SU39763A1 (en) | 1934-02-25 | 1934-02-25 | The method of obtaining furfurall |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU39763A1 (en) |
-
1934
- 1934-02-25 SU SU142870A patent/SU39763A1/en active
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