Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | HCID 10020712 | HCID 10020712 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 10267209 | HCID 10267209 | 21.6% |
Reaction Steps
To a solution of ethyl 4-(3-nitrophenyl)-6-phenyl-3-pyridazinecarboxylate (1 g) in a mixture of ethanol (10 ml) and tetrahydrofuran (10, ml) was added sodium borohydride (0.22 g) and the mixture was stirred for 3 hours at ambient temperature. Then the reaction mixture was poured into a mixture of ethyl acetate (100 ml) and water (50 ml). The organic layer was washed with saturated aqueous sodium chloride, dried over magnesium sulfate and evaporated in vacuo. The residue was subjected to a column chromatography on silica gel (50 g) and eluted with a mixture of benzene and ethyl acetate (5:1 V/V). The fractions containing the desired compound were combined and concentrated under reduced pressure. The residue was recrystallized from a mixture of ethanol and chloroform to give 3-hydroxymethyl-4-(3-nitrophenyl)-6-phenylpyridazine (0.19 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04990507 |
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| Source dataset | uspto-grants-1991_02 |
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| ORD ID | ord-1ed4917e2ca0431f87bf680d27320a16 |
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| Source note | uspto-grants-1991_02 |
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