HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2357569Generated: October 31, 2026
Potassium Carbonate → HCID 68455771, compound
https://huagongshe.com/reaction/2357569
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 1-Methylpiperazine | HCID 53167 | — |
| Reactant | 6-Bromo-1-chlorophthalazine | HCID 22030424 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 68455771 | HCID 68455771 | 91.1% |
Reaction Steps
A mixture of 6-bromo-1-chlorophthalazine (Example 1, 0.12 g, 0.5 mmol), 1-methylpiperazine (0.11 mL, 1.0 mmol) and potassium carbonate (0.07 g, 0.5 mmol) in 5 mL acetonitrile was added to a glass microwave reaction vessel. The reaction mixture was stirred and heated in a Smith Synthesizer® microwave reactor (Personal Chemistry, Inc., Upssala, Sweden) at 180° C. for about 20 min. After about 20 min. all starting material was converted to product (M+1=307, 309). The mixture was concentrated under vacuum and purified via flash chromatography (silica gel) eluting with a gradient of 2% 2 M ammonia in MeOH/DCM to 6% 2M ammonia in MeOH/DCM to give (0.14 g) 6-bromo-1-(4-methylpiperazin-1-yl)phthalazine as a yellow solid. Found MS (ES+): 307, 309(M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US07759337B2 |
|---|
| Source dataset | uspto-grants-2010_07 |
|---|
| ORD ID | ord-c9932d5d079d49cf88582b2521bf274d |
|---|
| Source note | uspto-grants-2010_07 |
|---|