反应详情

To a stirred solution of (S)-N-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydro-1H-inden-2-yl)propane-2-sulfonamide (6.95 mmol, 2.54 g) in Acetone (20.00 mL), a solution of Oxone(R), monopersulfate compound (7.65 mmol, 4.70 g) in Water (20 mL) was added dropwise over 2 min. The resultant solution was stirred for a further 10 min before being quenched with NaHSO3 (aq). The solution was extracted with DCM (×3), dried (MgSO4), filtered and concentrated in vacuo to give the crude product as a pale yellow oil (2.42 g). On standing the reaction mixture solidified to a pale yellow solid in an oily residue. The solid was triturated with heptane then ether to give the title compound as an off white solid (1.66 g, 94%). MS (ESI): m/z [M−H]− 254.0

1. custombefore being quenched with NaHSO3 (aq)
2. extractionThe solution was extracted with DCM (×3)
3. dry with materialdried (MgSO4)
4. filtrationfiltered
5. concentrationconcentrated in vacuo
6. customto give the crude product as a pale yellow oil (2.42 g)
7. customThe solid was triturated with heptane