FIELD: chemistry; pharmaceutics.
SUBSTANCE: invention relates to a method of producing pyridines used as initial compounds in synthesis of pharmaceutical preparations, herbicides, surfactants, vulcanisation accelerators of rubber, ion-exchange resins, and so forth. Method involves reaction of ethanol, formaldehyde and ammonia in the presence of treated 0.1–0.3 n. solution of citrate of zeolite H-Beta, at 200–400 °C and bulk feed rate (w) equal to 2–14 hours-1. Ethanol:formaldehyde:ammonia molar ratio is 1.0:0.8:1.5.
EFFECT: method according to the invention enables to obtain pyridines with high content of picolines and lutidine and low content of "heavy" compounds in reaction products.
1 cl, 1 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PYRIDINES PRODUCTION METHOD | 2017 |
|
RU2688162C1 |
| PYRIDINES PRODUCTION METHOD | 2017 |
|
RU2688680C1 |
| METHOD OF OBTAINING PYRIDINE AND METHYLPYRIDINES | 2013 |
|
RU2555844C1 |
| METHOD OF OBTAINING PYRIDINE AND METHYLPYRIDINES | 2013 |
|
RU2555843C1 |
| METHOD FOR PRODUCTION OF PYRIDINE AND METHYLPYRIDINES | 2015 |
|
RU2599573C2 |
| METHOD OF PRODUCING 3,5-DIMETHYLPYRIDINE | 2014 |
|
RU2608734C2 |
| METHOD FOR SYNTHESISING 2,4,6-TRIMETHYLPYRIDINE OVER A HIERARCHICAL ZEOLITE CATALYST H-YMMM | 2020 |
|
RU2759567C1 |
| METHOD FOR OBTAINING 2-ETHYL-3,5-DIMETHYL PYRIDINE | 2016 |
|
RU2644164C2 |
| METHOD FOR PRODUCING QUINOLINES | 2022 |
|
RU2786740C1 |
| METHOD FOR OBTAINING QUINOLINES IN THE PRESENCE OF HIERARCHICAL ZEOLITE H-ZSM-5mmm | 2021 |
|
RU2789409C1 |
