Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Boron Trichloride | HCID 25135 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | HCID 86721878 | HCID 86721878 | — |
| Catalyst | Tetrabutylammonium Iodide | HCID 67553 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 86721879 | HCID 86721879 | 64% |
Reaction Steps
To a solution of N-(4-chloro-benzyl)-N-isobutyl-4-methoxy-benzenesulfonamide (1.03 g, 2.8 mmol) in DCM (25 mL) was added tetrabutylammonium iodide (1.14 g, 3.1 mmol) and the reaction was cool to −78° C. To the solution was added boron trichloride (4.2 mL, 4.2 mmol of 1 M solution in DCM) over 2 minutes then stirred for a further 5 minutes. The reaction was left to warm to 0° C. and stirred for further 2 hours. Water and saturated aqueous NaHCO3 were added, extracted with DCM, filtered through a phase separator, concentrated then purified by silica gel column chromatography (0-30% EtOAc in cyclohexane) to give N-(4-chloro-benzyl)-4-hydroxy-N-isobutyl-benzenesulfonamide (629 mg, 64%). LCMS (m/z, Method A) ES− 352 [M−1]−.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09382222B2 |
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| Source dataset | uspto-grants-2016_07 |
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| ORD ID | ord-720e82b5512a4ceaa04e1ac6b9fdd8c0 |
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| Source note | uspto-grants-2016_07 |
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