Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Pyridine-2-sulfonyl Chloride | HCID 3787675 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 22506528 | HCID 22506528 | 95% |
Reaction Steps
To a solution of triethylamine (0.86 g, 8.51 mmol, 2.2 equiv.) in dichloromethane (3 mL) at 0° C. was added ethanol (0.18 g, 3.87 mmol, 1 equiv.) followed by the addition of 2-pyridylsulfonyl chloride (0.83 g, 4.65 mmol, 1.2 equiv.). After stirring for 4 hours at 0° C., the solution was concentrated under reduced pressure. The concentrate was dissolved in aqueous NaHCO3 solution (50 mL) and extracted with diethyl ether (3×50 mL). The ether extracts were combined and washed with aqueous NaCl (50 mL), dried (MgSO4), and concentrated under reduced pressure. Column chromatography (5% EtOAc/Hex) afforded 16 (95%): 1H NMR (CDCl3, 400 MHz) δ 8.70 (d, J=4.7 Hz, 1H, ArH), 7.95 (p, J=6.4 Hz, 2H, ArH), 7.56 (t, J=5.3 Hz, 1H, ArH), 4.37 (q, J=7.0 Hz, 2H, CH2OSO2R), 1.29 (t, J=7.0 Hz, 3H); MALDI-FTMS 188.0000 (C6H9NOS+H30 requires 188.0376).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06872574B2 |
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| Source dataset | uspto-grants-2005_03 |
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| ORD ID | ord-e9a676bfbc0847be9318f82560dec14f |
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| Source note | uspto-grants-2005_03 |
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