HuagongsheHuagongshe Chemistry Print Report · For research reference only
4,6-Dichloropyrimidine → 1-(Tert-butoxycarbonyl)-4-[1-(6-chloro-pyrimidin-4-yl)-piperidin-4-ylcarbonyl]piperazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4,6-Dichloropyrimidine | HCID 70943 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | Tert-butyl 4-(piperidine-4-carbonyl)piperazine-1-carboxylate | HCID 10803972 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 1-(Tert-butoxycarbonyl)-4-[1-(6-chloro-pyrimidin-4-yl)-piperidin-4-ylcarbonyl]piperazine | HCID 18698035 | 89.5% |
Reaction Steps
A solution of 4,6-dichloropyrimidine (3.60 g), 1-(tert-butoxycarbonyl)-4-(-4-piperidylcarbonyl)piperazine (6.00 g) and sodium hydrogen carbonate (4.20 g) in ethanol (100 ml) was heated at reflux for 6 hours. Solvent was evaporated and the residue dissolved in ethyl acetate and washed with water, dried (Na2SO4) and evaporated. The residue was recrystallised from ethyl acetate to give, as a solid 1-(tert-butoxycarbonyl)-4-[1-(6-chloro-pyrimidin-4-yl)-piperidin-4-ylcarbonyl]piperazine (7.40 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06093718 |
| Source dataset | uspto-grants-2000_07 |
| ORD ID | ord-0250639c463646639b0c0cacf2d16f18 |
| Source note | uspto-grants-2000_07 |