HuagongsheHuagongshe Chemistry Print Report · For research reference only
6-hydroxy-2H-chromen-2-one → 6-(3-Aza-spiro[5.5]undec-9-yloxy)-chromen-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 6-hydroxy-2H-chromen-2-one | HCID 99477 | — |
| Reactant | tert-Butyl 9-hydroxy-3-azaspiro[5.5]undecane-3-carboxylate | HCID 66701044 | — |
| Product | 6-(3-Aza-spiro[5.5]undec-9-yloxy)-chromen-2-one | HCID 16006549 | — |
Reaction Steps
Was prepared according to method A from 6-hydroxycoumarin and 9-hydroxy-3-aza-spiro[5.5]undecane-3-carboxylic acid tert-butyl ester. Mp. 192.9-193.6° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08049012B2 |
| Source dataset | uspto-grants-2011_11 |
| ORD ID | ord-a28ddcbfa0d14798a690decd4a26cffc |
| Source note | uspto-grants-2011_11 |