HuagongsheHuagongshe Chemistry Print Report · For research reference only
Diisopropylethylamine → 4,6-Dimethoxy-2-(alpha-fluorobenzyl) pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Dimethyl malonimidate dihydrochloride | HCID 12896693 | — |
| Reactant | 2-Fluoro-2-phenylacetyl chloride | HCID 14949528 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 4,6-Dimethoxy-2-(alpha-fluorobenzyl) pyrimidine | HCID 54101218 | 103.4% |
Reaction Steps
Dimethyl malonimidate dihydrochloride (11.0 g) was suspended in dichloromethane (100 ml) at -40° C. Ethyl diisopropylamine (38.9 ml) was added dropwise over 15 minutes at -40° C., followed by 2-fluoro-2-phenylacetyl chloride (11.0 g) in dichloromethane (15 ml) over 10 minutes at -40° C. The reaction mixture was allowed to warm to room temperature and stand overnight. It was then diluted further with dichloromethane, washed with ammonium chloride solution, then with water, and was dried over magnesium sulfate. The dichloromethane solution was evaporated to dryness to give 13.9 g of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05502028 |
| Source dataset | uspto-grants-1996_03 |
| ORD ID | ord-6138cea4710c432493891253a750fc80 |
| Source note | uspto-grants-1996_03 |