Potassium Carbonate → (+)-[7-(2-Chlorophenyl)-2,3-dihydro-1-benzofuran-2-yl]methyl 4-methylbenzenesulfonate

Participants

Reaction Steps

Treatment of (±)-(7-bromo-2,3-dihydro-1-benzofuran-2-yl)methyl 4-methylbenzenesulfonate (0.50 g, 1.305 mmol) with 2-chlorophenylboronic acid (0.306 g, 1.96 mmol), dichlorobis(tri-o-tolylphosphine)-palladium(II) (0.051 g, 0.065 mmol), and potassium carbonate (0.45 g, 3.26 mmol) generally according to the procedure described for Intermediate 37 provided 0.380 g (70%) of (±)-[7-(2-chlorophenyl)-2,3-dihydro-1-benzofuran-2-yl]methyl 4-methylbenzenesulfonate as a tan solid. mp 100-103° C.; Anal. calcd. for C22H19ClO4S: C, 63.69; H, 4.62. Found: C, 63.43; H, 4.69.

Provenance & Evidence