HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-Chlorophenylglyoxylic acid → 2-(4-chlorophenyl)-4-cyclopropylmethylpyrido[2,3-b]pyrazin-3(4H)-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-Chlorophenylglyoxylic acid | HCID 145998 | — |
| Reactant | N2-(cyclopropylmethyl)pyridine-2,3-diamine | HCID 28902457 | — |
| Solvent | Formaldehyde | HCID 712 | — |
| Product | 2-(4-chlorophenyl)-4-cyclopropylmethylpyrido[2,3-b]pyrazin-3(4H)-one | HCID 44218437 | 36.6% |
Reaction Steps
430 mg (2.63 mM) of N2-(cyclopropylmethyl)pyridine-2,3-diamine and 485.4 mg (2.63 mM) of (4-chlorophenyl)(oxo)acetic acid in 6 ml of methanal were refluxed for 16 h. A solid crystallized. The compound was filtered and washed with methanol to give 300 mg of 2-(4-chlorophenyl)-4-(cyclopropylmethyl)pyrido[2,3-b]pyrazin-3(4H)-one as a beige solid. Yield: 36.5%.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08609689B2 |
| Source dataset | uspto-grants-2013_12 |
| ORD ID | ord-5734a1bdf3c34a22b64aa6fdd58cbc5f |
| Source note | uspto-grants-2013_12 |