Ethyl Acetate → HCID 67517958, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-4-iodo-2-benzofuran-1(3H]-one (2.42 g, 7.13 mmol), allyltributyltin (2.36 g, 7.13 mmol), LiCl (1.50 g, 35.7 mmol) and Pd(PPh3)4 (200 g, 0.173 mmol) in toluene (50 mL) was heated at 90-100° C. under N2 overnight; LC indicated that reaction had gone to completion, to the solution was poured EtOAc (100 mL) and washed with brine. The organic layer was dried over Na2SO4, filtered and concentrated to dryness, absorbed into silica gel and was then separated over silica gel column to give 5-bromo-4-prop-2-en-1-yl-2-benzofuran-1(3H)-one. 1H-NMR (400 MHz, CDCl3) δ ppm 7.795 (d, J=8 Hz, 1H), 7.680 (d, J=8 Hz, 8.5 Hz, 1H), 5.938-5.925 (m, 1H), 5.302 (s, 2H), 5.192-5.172 (m, 1H), 5.075-5.041 (m, 1H), 3.611-3.599 (m, 2H)

Provenance & Evidence