HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Hydroxide → Furo(3,4-b)pyridine-3-carboxylic acid, 1,4,5,7-tetrahydro-2-methyl-5-oxo-4-(2-(trifluoromethyl)phenyl)-, ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | o-(Trifluoromethyl)benzaldehyde | HCID 123067 | — |
| Reactant | 2-Butenoic acid, 3-amino-, ethyl ester, (2Z)- | HCID 643756 | — |
| Reactant | Ethyl 4-acetoxyacetoacetate | HCID 11480907 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | Furo(3,4-b)pyridine-3-carboxylic acid, 1,4,5,7-tetrahydro-2-methyl-5-oxo-4-(2-(trifluoromethyl)phenyl)-, ethyl ester | HCID 3070026 | — |
Reaction Steps
50 millimols each of ethyl 4-acetoxy-3-oxo-butyrate, ethyl 3-aminocrotonate and 2-trifluoromethylbenzaldehyde in 100 ml of ethanol were boiled under reflux for 24 hours, 2 g of potassium hydroxide were then added, and the mixture was boiled for a further hour. After the mixture had cooled, the product was precipitated with a water/sodium chloride mixture and was recrystallized from methanol.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04532248 |
| Source dataset | uspto-grants-1985_07 |
| ORD ID | ord-c572f6dae9e6410db0705764869a9365 |
| Source note | uspto-grants-1985_07 |