FIELD: chemical industry.
SUBSTANCE: invention relates to a method for preparing 2-ethyl-3,5-dimethylpyridine which consists in the reaction of propionaldehyde and ammonia in the presence of amorphous mesoporous silica-alumina ASM (Si / Al = 40), the reaction is carried out in autoclave at 30–180 °C, with propane:ammonia molar ratio of 1–2:1–5, catalyst concentration of 2–20 %, within 5 hours.
EFFECT: technical result consists in preparing 2-ethyl-3,5-dimethylpyridine with a higher yield, using cheaper and more accessible catalyst, with fewer steps, without a solvent.
1 cl, 1 ex, 1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OBTAINING 2-ETHYL-3,5-DIMETHYL PYRIDINE | 2016 |
|
RU2644164C2 |
| METHOD FOR PRODUCTION OF PYRIDINE AND METHYLPYRIDINES | 2015 |
|
RU2599573C2 |
| METHOD OF PRODUCING 3,5-DIMETHYLPYRIDINE | 2014 |
|
RU2608734C2 |
| METHOD OF OBTAINING PYRIDINE AND METHYLPYRIDINES | 2013 |
|
RU2555843C1 |
| METHOD FOR SYNTHESISING 2,4,6-TRIMETHYLPYRIDINE OVER A HIERARCHICAL ZEOLITE CATALYST H-YMMM | 2020 |
|
RU2759567C1 |
| METHOD OF SYNTHESIS OF 3,5-DIMETHYL-2-ETHYL-PYRIDINE | 2001 |
|
RU2200156C2 |
| METHOD OF 2,3,5-TRIALKYLPYRIDINES PRODUCTION | 2007 |
|
RU2334739C1 |
| METHOD FOR SELECTIVE PRODUCTION OF NORBORNENE OLIGOMERS | 2019 |
|
RU2735741C1 |
| METHOD FOR OBTAINING QUINOLINES IN THE PRESENCE OF HIERARCHICAL ZEOLITE H-ZSM-5mmm | 2021 |
|
RU2789409C1 |
| METHOD FOR PRODUCING QUINOLINES | 2022 |
|
RU2786740C1 |
