Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2-Propenoic acid, 3-phenyl- | HCID 8784 | — |
| Reactant | P-Coumaric Acid | HCID 637542 | — |
| Reactant | Alumina | HCID 9989226 | — |
| Catalyst | Platinum | HCID 23939 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | Coumarin | HCID 323 | — |
Reaction Steps
To a stirred glass reactor is added 10 mmoles of coumaric acid, 0.5 mmoles of platinum composited on a gamma-alumina support and 60 grams of acetic acid. The reactor is heated to a temperature of 100° C. by means of an oil bath while effecting the reaction in a nitrogen atmosphere. At the end of 4 hours, it will be found that a major portion of the cinnamic acid is cyclized to form coumarin.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US03998851 |
|---|
| Source dataset | uspto-grants-1976_12 |
|---|
| ORD ID | ord-7d8fa282fed947a0814dfe8ca0edde0a |
|---|
| Source note | uspto-grants-1976_12 |
|---|
