FIELD: chemistry.
SUBSTANCE: invention relates to organic chemistry, specifically, to synthesis of pyridine-2(1H)-one (other names of the compound: 2-hydroxypyridine, 2-pyridone), constituting an important raw material for the chemical and pharmaceutical industries. Method for producing pyridine-2(1H)-one consists in oxidating pyridine with ammonium persulphate in an alkaline medium at 40 to 60 °C in the presence of 0.01 to 0.3% wt. phthalocyanine oxidation catalyst (cobalt, or iron (II), or iron (III), or manganese, or nickel, or zinc phthalocyanine), followed by cooling the reaction mixture and releasing an intermediate 2-pyridinyl sulphate. Pyridine-2 (1H)-one is produced through the hydrolysis of the latter in an acidic medium at 85 to 95 °C.
EFFECT: simplified production method and higher output of the target product.
1 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING PYRIDIN-2(1H)-ONE | 2023 |
|
RU2818919C1 |
| METHOD FOR PRODUCING HYDROQUINONE | 2022 |
|
RU2784427C1 |
| METHOD FOR OBTAINING N,N-DIMETHYL-4-BIPHENYLAMINE AND ITS DERIVATIVES | 2022 |
|
RU2794095C1 |
| METHOD OF OBTAINING 2-OXO-4-CYANO-1,2-DIHYDROPYRIDINE-3-CARBOXAMIDES | 2011 |
|
RU2475480C1 |
| METHOD OF THE PRODUCTION OF PARA-ACETYLAMINOPHENOL | 2022 |
|
RU2800098C1 |
| METHOD FOR THE PREPARATION OF [1,2,4] DICHALCOGEN-AZOLE[4,3-α]PYRIDINIUM HALIDES | 2022 |
|
RU2781276C1 |
| METHOD FOR THE OBTAINING 6-AMINO-4-ARYL-2-THIOXO-1,2-DIHYDROPYRIDINE-3,5-DICARBONITRILES | 2022 |
|
RU2792625C1 |
| METHOD OF PREPARATION OF 4-HETARYL-3,6-DIOXO-2,3,4,5,6,7-HEXAHYDROISOTHIAZOLO[5,4-b]PYRIDINE-5-CARBONITRILES | 2023 |
|
RU2812610C1 |
| LEACHING GOLD BY MEANS OF SULFUR-CONTAINING HETEROCYCLIC AROMATIC COMPOUNDS | 1994 |
|
RU2114926C1 |
| METHOD FOR PRODUCING FLUORALKYL-CONTAINING TRIBUTYLSTANNANE | 2023 |
|
RU2807921C1 |
