HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 15595653, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 6-(m-Acetamidophenyl)-1,2,4-triazolo[4,3-b]pyridazine | HCID 7532146 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 15595653 | HCID 15595653 | — |
Reaction Steps
To 2.53 g of N-[3-(1,2,4-triazolo[4,3-b]pyridazin-6-yl)phenyl]acetamide in 100 ml of dry dimethylformamide was added 0.6 g of sodium hydride (50% in oil). This mixture was stirred under argon, for 1 hour, then 0.78 ml of methyl iodide was added. This mixture was stirred overnight, then poured into 300 ml of water and extracted with 50 ml portions of dichloromethane. The extracts were combined, dried and evaporated in vacuo. The residue was chromatographed on a silica gel column, eluting with dichloromethane:methanol (98:2). The active fractions were combined, evaporated and the solid recrystallized from dichloromethane-hexane, giving 1.39 g of the desired product as light orange crystals mp 166°-169° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04892873 |
| Source dataset | uspto-grants-1990_01 |
| ORD ID | ord-a44811dab2ea4461841e6b881d372e09 |
| Source note | uspto-grants-1990_01 |