HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl 3-bromopropionate → 3-hexyloxy-4-hydroxy-8-(2-ethoxycarbonylethoxy)-2H-1-benzopyran-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl 3-bromopropionate | HCID 68320 | — |
| Reactant | HCID 54696930 | HCID 54696930 | — |
| Product | 3-hexyloxy-4-hydroxy-8-(2-ethoxycarbonylethoxy)-2H-1-benzopyran-2-one | HCID 54696884 | — |
Reaction Steps
In the same manner as in Reference Example 3, except that an equimolar amount of 3-hexyloxy-4,8-dihydroxy-2H-1-benzopyran-2-one was used in place of 3-hexyloxy-4,5-dihydroxy-2H-1-benzopyran-2-one, and ethyl 3-bromopropionate was used in place of ethyl bromoacetate in Reference Example 3, 3-hexyloxy-4-hydroxy-8-(2-ethoxycarbonylethoxy)-2H-1-benzopyran-2-one was obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06670391B2 |
| Source dataset | uspto-grants-2003_12 |
| ORD ID | ord-f53c8389a5b6437c8c0da9988edbcea0 |
| Source note | uspto-grants-2003_12 |