HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1786683Generated: October 30, 2026
Formic Acid → 4-(3-Ethyl-1H-indol-2-yl)-6-pyridin-4-yl-2H-pyridazin-3-one
https://huagongshe.com/reaction/1786683
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Formic Acid | HCID 284 | — |
| Reactant | Acetonitrile--water (1/1) | HCID 18373917 | — |
| Reactant | 3-Ethyl-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-1H-indole | HCID 23092455 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Sodium Hydroxide | HCID 14798 | — |
| Product | 4-(3-Ethyl-1H-indol-2-yl)-6-pyridin-4-yl-2H-pyridazin-3-one | HCID 135525676 | — |
Reaction Steps
60 mg 3-Ethyl-2-(3-methoxy-6-pyridin-4-yl-pyridazin-4-yl)-1H-indole is dissolved in 0.5 ml ethanol and 0.5 ml 1N aqueous NaOH solution. The reaction mixture is stirred at 150° C. in microwave apparatus (200 W). The reaction mixture is directly applied to HPLC chromatography to isolate the product (RP18 column, acetonitrile/water, 0.05% HCOOH)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07507734B2 |
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| Source dataset | uspto-grants-2009_03 |
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| ORD ID | ord-abda347c2ef249bc8915db008f19ce56 |
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| Source note | uspto-grants-2009_03 |
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