HuagongsheHuagongshe Chemistry Print Report · For research reference only
Syringaldehyde → 5-[(3,5-Dimethoxy-4-hydroxyphenyl)methylene]-2,4-imidazolidinedione
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Syringaldehyde | HCID 8655 | — |
| Reactant | Hydantoin | HCID 10006 | — |
| Product | 5-[(3,5-Dimethoxy-4-hydroxyphenyl)methylene]-2,4-imidazolidinedione | HCID 4088733 | 75.7% |
Reaction Steps
Prepared according to the procedure described in Example 90 using 3,5-dimethoxy-4-hydroxybenzaldehyde (5.6 g, 30 mmoles), hydantoin (3.0 g, 30 mmoles), and μ-alanine (1.4 g, 16 mmoles), to afford the pure product (6.0 g), mp 296°-297° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05464856 |
| Source dataset | uspto-grants-1995_11 |
| ORD ID | ord-ce2b36cfed394d5b93f12afce8243500 |
| Source note | uspto-grants-1995_11 |