HuagongsheHuagongshe Chemistry Print Report · For research reference only
Piperazine → 1-Benzyl-4-piperazin-1-yl-phthalazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | 1-Benzyl-4-chlorophthalazine | HCID 6404566 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 1-Benzyl-4-piperazin-1-yl-phthalazine | HCID 6404023 | 58.6% |
Reaction Steps
1-Benzyl-4-chlorophthalazine (1.06 g, 4.18 mmol) and piperazine (1.82 g, 20.9 mmol) are added into a microwave vial, followed by NMP (5 ml) and triethylamine (6.62 ml, 12.5 mmol). The vial is sealed and irradiated in the microwave at 180° C. (high absorption setting) for 30 minutes. Dichloromethane (10 mL) is added to form a precipitate, which is washed with additional dichloromethane and dried under reduced pressure to afford the product as a white powder (745 mg, 58% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08536168B2 |
| Source dataset | uspto-grants-2013_09 |
| ORD ID | ord-2b84ef5d88e24f2ea72c32f3e89068b2 |
| Source note | uspto-grants-2013_09 |