Furan → HCID 21350305, compound

Participants

Reaction Conditions

Reaction Steps

To a cooled (0° C.) solution of furan (5.7 mL, 78 mmol) in TMEDA/THF (81.4 mL, 14/86) is added n-buLi (15 mL, 2.5 M in hexanes). The cold bath is removed and the resulting solution stirred for 45 minutes, then a solution of ZnCl2 in THF added (40 mL, 0.5M). To this solution is added (Ph3P)4Pd (1.0 g, 0.86 mmol) and 2-(4-Bromo-phenyl)-2-methyl-propionic acid methyl ester (4.5 g, 17.5 mmol) (reference example 31 a). The resulting solution is warmed to 60° C. and stirred for 3 hours. The reaction mixture is then cooled, diluted with ether, washed with hydrochloric acid (2M), then brine, dried over MgSO4 and concentrated. The residue is purified by flash chromatography (eluting with 5% ether in hexanes) to give 3.84 g of the title compound as a solid. 1H NMR (CDCl3) d 1.60 (s, 6H), 3.67 (s, 3H), 6.45 (m, 1H), 6.63 (d, J=3 Hz, 1H), 7.35 (m, 2H), 7.46 (m, 1H), 7.65 (m, 2H). MS (EI) m/z 245 (M+H)+.

Provenance & Evidence