反应详情

温度

20 °C

A solution of tert-butyl (3-ethynylphenyl)carbamate (12.7 g, 58.5 mmol), tert-butyl (2-iodo-4-nitrophenyl)carbamate (14.2 g, 39.0 mmol), bis(triphenylphosphine)palladium(II) chloride (1.37 g, 1.95 mmol), and copper(I) iodide (371 mg, 1.95 mmol) in THF (200 mL) was treated with N,N-diisopropylethylamine (7.47 mL, 42.9 mmol) dropwise and stirred at 20° C. overnight. The reaction mixture was concentrated and diluted with water (200 mL) and ethyl acetate (200 mL). The organic layer was separated, washed with brine, dried with sodium sulfate, filtered, and concentrated to give a yellow/brown solid which was washed with ethyl acetate to give the desired product as light yellow solid (15 g, 85%). LCMS calculated for C24H27N3O6Na (M+Na)+: m/z=476.2.

1. concentrationThe reaction mixture was concentrated
2. additiondiluted with water (200 mL) and ethyl acetate (200 mL)
3. customThe organic layer was separated
4. washwashed with brine
5. dry with materialdried with sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated
8. customto give a yellow/brown solid which
9. washwas washed with ethyl acetate