HuagongsheHuagongshe Chemistry Print Report · For research reference only
Salicylaldehyde → 1-(p-Carboxyphenyl)-3-methyl-4-(o-hydroxybenzylidene)-2-pyrazolin-5-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Salicylaldehyde | HCID 6998 | — |
| Reactant | 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid | HCID 109029 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 1-(p-Carboxyphenyl)-3-methyl-4-(o-hydroxybenzylidene)-2-pyrazolin-5-one | HCID 136277156 | — |
Reaction Steps
218 g (1 mole) of 1-p-carboxyphenyl-3-methyl-2-pyrazolin-5-one were suspended in 1000 ml of acetic acid. The suspension was heated to boiling temperature and 112 g (1 mole) of salicyladehyde were added. In the resulting solution the dye started crystallizing very quickly. After 2 h of refluxing the reaction mixture was cooled to room temperature. The dye was filtered with suction and rinsed with acetone.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04311787 |
| Source dataset | uspto-grants-1982_01 |
| ORD ID | ord-a7c35749629a4dd988f5dbf3c860fedc |
| Source note | uspto-grants-1982_01 |