Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | 3,4-Dimethylphenyl isocyanate | HCID 4389663 | — |
| Reactant | HCID 28370697 | HCID 28370697 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 58156326 | HCID 58156326 | — |
Reaction Steps
To a solution of 2-(2,6-dichlorophenyl)-3H-benzimidazol-5-ylamine (100 mg, 360 μmol) in THF (5 mL) was added 3,4-dimethylphenylisocyanate (51 μL, 54 mg., 360 μmols) and the mixture was stirred at ambient temperature for 18 h then was poured into ethyl acetate and extracted with water. The organic layer was dried, filtered, and solvent removed under reduced pressure to leave crude product that was purified by chromatography using a 50-90% gradient of heptane/ethyl acetate to give 1-[2-(2,6-dichlorophenyl)-3H-benzimidazol-5-yl]-3-(3,4-dimethylphenyl)-urea. 1H NMR (DMSO-d6, 400 MHz): δ 12.69 (s, broad, 1H), 8.69 (s, broad, 1H), 8.48 (s, 1H), 7.95 (s, broad, 1H), 7.67 (d, J=7.7 Hz, 2H), 7.60 (m, 2H), 7.26 (s, 1H), 7.20 (d, J=7.7 Hz, 1H) 7.03 (d, J=8.0 Hz, 2H), 2.20 (s, 3H), 2.16 (s, 3H); MS (m/z) 425.1 (M+1); Retention time=1.35 min (Method 10); High Resolution MS (M+1): theory 425.0936, measured 425.0951.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08222248B2 |
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| Source dataset | uspto-grants-2012_07 |
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| ORD ID | ord-36f357baa32c42d2867a32babb23d2c4 |
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| Source note | uspto-grants-2012_07 |
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