Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 7,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one | HCID 11164161 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 59716854 | HCID 59716854 | 100.1% |
Reaction Steps
To a solution of the 7,8-bis(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one (100 mg, 0.28 mmol), prepared as described in Example 1, in DMF (3 mL) at RT was added K2CO3 (116 mg, 0.84 mmol), followed by iodomethane (79 mg, 0.56 mmol). The reaction was heated at 60° C. for overnight. The reaction was diluted with EtOAc (20 mL), washed with saturated aqueous NaCl (20 mL×3). The organic layer was dried (MgSO4), filtered and concentrated under reduced pressure to give the title compound, 7,8-bis(4-chlorophenyl)-2-methyl-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one, (104 mg, 100%) as a yellow oil. HPLC retention time: 3.67 min; MS [M+H]+: found 371.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07378418B2 |
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| Source dataset | uspto-grants-2008_05 |
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| ORD ID | ord-042d394925f148b68bdd016a021e192c |
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| Source note | uspto-grants-2008_05 |
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