HuagongsheHuagongshe Chemistry Print Report · For research reference only
Potassium Carbonate → 4-(6-Bromophthalazin-1-yl)-3-methylpiperazin-2-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 3-Methyl-2-ketopiperazine | HCID 5106600 | — |
| Reactant | 6-Bromo-1-chlorophthalazine | HCID 22030424 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 4-(6-Bromophthalazin-1-yl)-3-methylpiperazin-2-one | HCID 68453097 | 60.5% |
Reaction Conditions
| Temperature | 190 °C |
|---|
Reaction Steps
In three separate sealed tubes were placed a mixture of 6-bromo-1-chlorophthalazine (0.250 g, 1.03 mmol), 3-methylpiperazin-2-one (0.239 g, 2.09 mmol), K2CO3 (0.155 g, 1.12 mmol) and 5 mL of CH3CN. The three reactions were heated at 190° C. for 15 min in a microwave oven. The reaction mixtures were combined, concentrated onto silica gel and purified using flash chromatography eluting with 2M NH3 in MeOH/CH2Cl2 (0:1→1:19) to give 200 mg (60%) of an orange oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07759337B2 |
| Source dataset | uspto-grants-2010_07 |
| ORD ID | ord-d5d1e10686c64ea5904b85bc59a4df5b |
| Source note | uspto-grants-2010_07 |