Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Cyclobutylamine | HCID 75645 | — |
| Reactant | 5-(2,6-Dichloro-4-nitro-phenoxy)-2-methoxy-benzenesulfonyl chloride | HCID 15541442 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 22728152 | HCID 22728152 | 37.1% |
Reaction Steps
To a solution of 5-(2,6-Dichloro-4-nitro-phenoxy)-2-methoxy-benzenesulfonyl chloride (1.3 grams, 3.2 mmol) in methylene chloride (30 mL) at 0° C. was added triethylamine (0.58 mL, 4.1 mmol) followed by cyclobutylamine (0.27 mL, 3.2 mmol). After stirring at room temperature for 2 hours, the reaction mixture was quenched with 1N hydrochloric acid (25 mL) and extracted with methylene chloride (3 times 15 mL). The combined organic extracts were washed with 1N HCl (20 mL), saturated aqueous NaHCO3 (2 times 20 mL), dried over Na2SO4, filtered, and concentrated. The residue was purified by column chromatography (30% ethyl acetate in hexane) to afford the title compound (531 mg). 1H NMR (400 MHz, CDCl3) δ8.28 (s, 2H), 7.28 (d, 1H), 7.07-7.04 (dd, 1H), 6.98 (d, 1H), 5.26 (d, 1H), 3.96 (s, 3H), 3.71-3.69 (m, 1H), 1.99-1.92 (m, 2H), 1.74-1.68 (m, 2H), 1.57-1.48 (m, 2H). MS (APCI−) Calc: 446.1, Found: 445.2 (M−1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06723744B2 |
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| Source dataset | uspto-grants-2004_04 |
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| ORD ID | ord-47db5ef08a084a78a0a98479afd455cc |
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| Source note | uspto-grants-2004_04 |
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