HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1835151Generated: October 25, 2026
Methylhydrazine → 2,3-Dihydro-2-methyl-6-(1-naphthalenylmethyl)-1H-pyrrolo[3,4-d]pyridazin-1,4(6H)-dione
https://huagongshe.com/reaction/1835151
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methylhydrazine | HCID 6061 | — |
| Reactant | Diethyl 1-(1-naphthalenylmethyl)pyrrole-3,4-dicarboxylate | HCID 23503264 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 2,3-Dihydro-2-methyl-6-(1-naphthalenylmethyl)-1H-pyrrolo[3,4-d]pyridazin-1,4(6H)-dione | HCID 23503248 | — |
Reaction Steps
Methyl hydrazine (0.55 ml) was added to a solution of diethyl 1-(1-naphthalenylmethyl)pyrrole-3,4-dicarboxylate (1.00 g) in ethanol (10 ml). The mixture was heated at 200° C. in a sealed tube for 3 days. The mixture was evaporated and the residue was purified by column chromatography, eluting with ethyl acetate:methanol (19:1). The resulting solid was suspended in ethyl acetate (25 ml), heated to reflux, and allowed to cool to ambient temperature. The title compound (0.105 g) was collected by filtration.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06770646B2 |
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| Source dataset | uspto-grants-2004_08 |
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| ORD ID | ord-d616436f19a0493ab55b9218d141bc9f |
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| Source note | uspto-grants-2004_08 |
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