反应详情

A mixture of tert-butyl N-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetamide (100 mg, 0.429 mmol) in pyridine (1 mL) was added acetic anhydrate (1 mL) and stirred at room temperature for 23 hours. The mixture was diluted with AcOEt, washed with 1N HCl, brine, dried over Na2SO4, then filtrated through Celite pad. The filtrate was concentrated to afford the desired product (91 mg, 77%) as a dark brown solid. 1HNMR (CDCl3) 400 MHz δ: 7.85 (d, J=8.0 Hz, 2H), 7.19 (d, J=8.0 Hz, 2H), 3.27 (s, 3H), 1.88 (s, 3H), 1.35 (s, 12H).

1. washwashed with 1N HCl, brine
2. dry with materialdried over Na2SO4
3. filtrationfiltrated through Celite pad
4. concentrationThe filtrate was concentrated