Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Malic Acid | HCID 525 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | Fuming sulfuric acid | HCID 24681 | — |
| Solvent | Water | HCID 962 | — |
| Product | Coumalic acid | HCID 68141 | — |
Reaction Steps
To 200 g of malic acid was added 175 cc of concentrated sulfuric acid and 1 g of 65% oleum. The mixture was heated to 100° C. for two hours, cooled to 30° C. and diluted with 300 cc of water. The reaction mixture was cooled to 25° C. and filtered to give coumalic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US04230864 |
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| Source dataset | uspto-grants-1980_10 |
|---|
| ORD ID | ord-64ac0670244941ec9c5226455a41534c |
|---|
| Source note | uspto-grants-1980_10 |
|---|
