FIELD: chemistry.
SUBSTANCE: method for producing furadonin consists in the production of I-aminohydantoin by the reaction of 2-semicarbazide acetic acid with a sulfuric acid solution, hydrolysis of 5-nitrofurfural diacetate in a sulfuric acid solution and in the production of furadonin by condensation of a solution of 5-nitrofurfurol and I-aminohydantoin at a temperature of not more than 80°C.
EFFECT: method improvement.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OBTAINING FURACILIN | 2016 |
|
RU2673491C2 |
| METHOD FOR PRODUCING FURADONIN | 2015 |
|
RU2615132C1 |
| METHOD FOR PRODUCING PARACETAMOL | 2016 |
|
RU2668500C2 |
| METHOD FOR THE PREPARATION OF PAPAVERINE HYDROCHLORIDE | 2016 |
|
RU2647583C2 |
| METHOD FOR SULFANILAMIDE (STREPTOCIDE) PRODUCTION | 2016 |
|
RU2640135C2 |
| METHOD FOR PRODUCING POTASSIUM OROTATE | 2016 |
|
RU2662923C2 |
| METHOD FOR PRODUCING PHTALAZOL | 2016 |
|
RU2684285C2 |
| METHOD FOR PREPARATION OF SULFADIMEZINE (VARIANTS) | 2016 |
|
RU2657241C2 |
| METHOD FOR OBTAINING A STREPTOCIDE SOLUBLE | 2016 |
|
RU2663071C2 |
| METHOD FOR PREPARATION OF DROTAVERINE HYDROCHLORIDE | 2015 |
|
RU2661150C9 |
