HuagongsheHuagongshe Chemistry Print Report · For research reference only
Olivetol → 1,2-dihydro-9-hydroxy-2-methyl-7-n-pentyl-4-oxo-4H-thieno[2,3-c][1] benzopyran
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Olivetol | HCID 10377 | — |
| Reactant | Methyl 5-methyl-3-oxo-tetrahydrothiophene-2-carboxylate | HCID 12914976 | — |
| Product | 1,2-dihydro-9-hydroxy-2-methyl-7-n-pentyl-4-oxo-4H-thieno[2,3-c][1] benzopyran | HCID 21553559 | 62% |
Reaction Steps
5-n-Pentyl resorcinol is reacted with methyl 5-methyl-3-oxo-tetrahydrothiophene-2-carboxylate to produce 1,2-dihydro-9-hydroxy-2-methyl-7-n-pentyl-4-oxo-4H-thieno[2,3-c][1] benzopyran, m.p. 188°-190°C, in 62% yield.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03946111 |
| Source dataset | uspto-grants-1976_03 |
| ORD ID | ord-1de5cadc2bf5423f9b71531a1180b1ad |
| Source note | uspto-grants-1976_03 |