HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Hydroxide → 8-[p-(benzyloxy)phenyl]-7-oxo-7H-thieno[2,3-a]quinolizine-10-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | methyl 8-[p-(benzyloxy)phenyl]-7-oxo-7H-thieno[2,3-a]quinolizine-10-carboxylate | HCID 19353633 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | 8-[p-(benzyloxy)phenyl]-7-oxo-7H-thieno[2,3-a]quinolizine-10-carboxylic acid | HCID 19353629 | 748.6% |
Reaction Steps
0.23 g (0.5 mmol) of methyl 8-[p-(benzyloxy)phenyl]-7-oxo-7H-thieno[2,3-a]-quinolizine-10-carboxylate in 2 ml of ethanol was stirred overnight under reflux with a solution of 0.06 g of potassium hydroxide in 1.25 ml of water. Acidification to pH 1 with 1N hydrochloric acid and removal of the precipitate by filtration yielded 1.6 g (72%) of 8-[p-(benzyloxy)phenyl]-7-oxo-7H-thieno[2,3-a]quinolizine-10-carboxylic acid with m.p. 197°-199° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05869500 |
| Source dataset | uspto-grants-1999_02 |
| ORD ID | ord-df334377d60d4f2181abb4874e671dde |
| Source note | uspto-grants-1999_02 |