HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-Chloro-1-naphthol → 4-Hydroxy-6-chloro-benzo[h]chromen-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-Chloro-1-naphthol | HCID 11787 | — |
| Reactant | 4-hydroxy-2H-benzo[h]chromen-2-one | HCID 54676818 | — |
| Product | 4-Hydroxy-6-chloro-benzo[h]chromen-2-one | HCID 54705474 | 30% |
Reaction Steps
The procedure was identical to that used for the preparation of 10a: 30% yield (starting with 4-chloro-1-naphthol 9d); 1H NMR (DMSO) δ 5.90 (1H, s, H-3), 7.81 (2H, m, H-8, 9), 7.90 (1H, s, H-5), 8.25 (1H, d, J=7.8 Hz, H-7), 8.43 (1H, d, J=7.5 Hz, H-10).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07495026B2 |
| Source dataset | uspto-grants-2009_02 |
| ORD ID | ord-8f45909ad6104f018682b3c886553de6 |
| Source note | uspto-grants-2009_02 |