Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | 2-Thiohydantoin | HCID 1274030 | — |
| Reactant | 3,4-Dihydroxy-5-nitrobenzaldehyde | HCID 5748957 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | HCID 54284523 | HCID 54284523 | — |
Reaction Steps
A solution containing 2.9 g (0.025 mol) of 2-thiohydantoin, 4.6 g (0.025 mol) of 3,4-dihydroxy-5-nitrobenzaldehyde and 0.25 ml of piperidine in 50 ml of acetic acid was heated for 7-8 h at 100° C. The crystals were filtered and washed with 2-propanol. Yield 5.0 g (71%), mp>350° C. (decom.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US05889037 |
|---|
| Source dataset | uspto-grants-1999_03 |
|---|
| ORD ID | ord-4f5d0663291a4b18948ecbfa1348c3b7 |
|---|
| Source note | uspto-grants-1999_03 |
|---|
