Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1-[(2H-1,3-Benzodioxol-5-yl)methyl]piperidin-4-amine | HCID 11673104 | — |
| Reactant | 4-Chloro-6-(trifluoromethoxy)-2H-1-benzopyran-2-one | HCID 22348157 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Product | HCID 22348107 | HCID 22348107 | 52.5% |
Reaction Steps
To a suspension of 4-chloro-6-trifluoromethoxycoumarin (0.04 g, 0.15 mmol) in 1 ml N-methylpyrrolidone in a Smith reaction vial was added 1-benzo[1,3]dioxol-5-ylmethyl-piperidin-4-ylamine (0.039 g, 0.16 mmol) followed by 0.042 ml of triethylamine. The reaction vessel was sealed with a crimper and the reaction heated at 220° C. for 20 minutes in a Smith Synthesizer. The reaction was diluted with 20 ml water and extracted with 3×10 ml ethyl acetate. The combined organic layers were dried over MgSO4, filtered, evaporated and chromatographed using 2% CH3OH:DCM to afford 36.4 mg (52%) of a white solid. MS (ESI (+)) m/e 463 (M+H)+; 1H NMR (300 MHz, MeOD4) δ ppm 1.65-1.75 (m, 2H), 2.0-2.1 (m, 2H), 2.25 (m, 2H), 3.0 (m, 2H), 3.5 (s, 2H), 3.6 (m, 1H), 5.37 (s, 1H), 5.9 (s, 2H), 6.75 (m, 2H), 6.9 (m, 1H), 7.45 (m, 1H), 7.55 (m, 1H), 8.10 (br s, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06921821B2 |
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| Source dataset | uspto-grants-2005_07 |
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| ORD ID | ord-6691484d0ffd42bfb54b387faa5d4678 |
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| Source note | uspto-grants-2005_07 |
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