Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 2-[3-(2,4-Difluorophenylamino)-4-nitrophenyl]-2-methyl-1,3-dioxolane | HCID 10314928 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 19817746 | HCID 19817746 | 84.5% |
Reaction Steps
Sodium hydride (60%; 0.14 g) was added portionwise to an ice-cooled solution of 2-[3-(2,4-difluorophenylamino)-4-nitrophenyl]-2-methyl-1,3-dioxolane (1 g) in N,N-dimethylformamide. To the resulting mixture as added methyl iodide (1.7 g). The mixture was stirred at 0° C. for 30 minutes, poured into ice-water (50 ml) and extracted with ethyl acetate. The extract was washed with water, dried and evaporated. The oily residue was purified by column chromatography on silica gel (30 g) eluting with toluene to give an oil of 2-{3-[N-methyl-N-(2,4-difluorophenyl)amino]-4-nitrophenyl}-2-methyl-1,3-dioxolane (0.88 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05034417 |
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| Source dataset | uspto-grants-1991_07 |
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| ORD ID | ord-ad068f835b634fec9e7e354cc6fb894d |
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| Source note | uspto-grants-1991_07 |
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