HuagongsheHuagongshe Chemistry Print Report · For research reference only
5-Ethylnaphthalen-1-ol → 4-Hydroxy-7-ethyl-benzo[h]chromen-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 5-Ethylnaphthalen-1-ol | HCID 12336383 | — |
| Reactant | 4-hydroxy-2H-benzo[h]chromen-2-one | HCID 54676818 | — |
| Product | 4-Hydroxy-7-ethyl-benzo[h]chromen-2-one | HCID 54705475 | 25% |
Reaction Steps
The procedure was identical to that used for the preparation of 10a: 25% yield (starting with 5-ethyl-1-naphthol 9c); 1H NMR (DMSO) δ 1.31 (3H, t, J=7.2 Hz, CH3CH2—), 3.12 (2H, q, J=7.2 Hz, CH3CH2—), 5.69 (1H, s, H-3), 7.61 (2H, m, H-8, 9), 7.85 (1H, d, J=8.7 Hz, H-5), 7.99 (1H, d, J=8.7 Hz, H-6), 8.25 (1H, d, J=7.8 Hz, H-10).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07495026B2 |
| Source dataset | uspto-grants-2009_02 |
| ORD ID | ord-f3bf5a27dcbc4157a9a20882c2a8473a |
| Source note | uspto-grants-2009_02 |