HuagongsheHuagongshe Chemistry Print Report · For research reference only
3,4-Dimethylphenol → 1,2,3,4-Tetrahydro-8,9-dimethyl-5H-[1]benzopyrano[3,4-c]pyridin-5-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3,4-Dimethylphenol | HCID 7249 | — |
| Reactant | Methyl 4-oxopiperidine-3-carboxylate hydrochloride | HCID 2724028 | — |
| Product | 1,2,3,4-Tetrahydro-8,9-dimethyl-5H-[1]benzopyrano[3,4-c]pyridin-5-one | HCID 13136915 | 84.2% |
Reaction Steps
Prepared by the method described in Example 1 from 3,4-dimethylphenol (10.0 g, 0.082 moles) and methyl 4-oxo-3-piperdinecarboxylate hydrochloride (11.3 g, 0.058 moles). Recrystallization from 2-methoxyethanol yielded the product (11.2 g), mp 172°-l74° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04382939 |
| Source dataset | uspto-grants-1983_05 |
| ORD ID | ord-298921b440f549e6bd10bc5587a43c75 |
| Source note | uspto-grants-1983_05 |