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 (3.00 g, 7.83 mmol) with 3-chlorophenylboronic acid (1.84 g, 11.74 mmol), dichlorobis(tri-o-tolylphosphine)-palladium(II) (0.308 g, 0.391 mmol), and potassium carbonate (2.70 g, 19.57 mmol) generally according to the procedure described for Intermediate 37 provided 2.35 g (72%) 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