HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Acid → 8-Methyl-1,1-dioxothiochroman-4-one-7-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Hydrogen Peroxide | HCID 784 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | 8-Methylthiochroman-4-one-7-carboxylic acid | HCID 15335228 | — |
| Catalyst | Sodium tungstate | HCID 26052 | — |
| Product | 8-Methyl-1,1-dioxothiochroman-4-one-7-carboxylic acid | HCID 15335229 | — |
Reaction Steps
20 g (0.09 mol) of 8-methylthiochroman-4-one-7-carboxylic acid are dissolved in 100 ml of acetic acid. One spatula-tip full of sodium tungstate is added. 24.9 g (0.22 mol) of 30% strength hydrogen peroxide solution are then added dropwise at 50° C. Stirring is continued for one hour at RT. The reaction solution is then poured into water, during which process a precipitate is formed, which is filtered off with suction. The product is washed with water and then dried.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06291682B1 |
| Source dataset | uspto-grants-2001_09 |
| ORD ID | ord-f0e321cbefac4d678f9692038bbf17ed |
| Source note | uspto-grants-2001_09 |