Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl anisate | HCID 60979 | — |
| Reactant | 4-Chloro-2-methylpyridine | HCID 581392 | — |
| Reactant | Lithium Hexamethyldisilazide | HCID 2733832 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 21874054 | HCID 21874054 | — |
Reaction Steps
To a cold (0° C.) solution of 4-chloro-2-picoline (10 g, 78.4 mmol) and ethyl 4-methoxybenzoate (14.1 g, 78.4 mmol) in tetrahydrofuran (100 mL) was added lithium bis(trimethylsilyl)amide (157 mL, 1.0 M in tetrahydrofuran, 157 mmol) dropwise via a pressure equalizing funnel over half an hour. Upon complete addition, the ice bath was removed and the resulting solution was heated at 45° C. for 15 hours. The mixture was cooled to room temperature, and the solution was concentrated. Methanol was added to quench the reaction, resulting in the formation of a yellow precipitate. The precipitate was collected by filtration and dried to give the product as a mixture of enol and ketone tautomers. MS m/z 262 (M+1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07141569B2 |
|---|
| Source dataset | uspto-grants-2006_11 |
|---|
| ORD ID | ord-8158751891aa43319ab2d9f15e32c72a |
|---|
| Source note | uspto-grants-2006_11 |
|---|