Potassium Carbonate → (+/-)-[7-(4-Methoxyphenyl)-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 (3.0 g, 7.82 mmol) with 4-methoxyphenylboronic acid (1.78 g, 11.74 mmol), dichlorobis(tri-o-tolylphosphine)-palladium(II) (0.307 g, 0.391 mmol), and potassium carbonate (2.70 g, 19.57 mmol) generally according to the procedure described for Intermediate 37 provided 2.2 g (68%) of (±)-[7-(4-methoxyphenyl)-2,3-dihydro-1-benzofuran-2-yl]methyl 4-methylbenzenesulfonate as a yellow solid. mp 116-117° C.; Anal. calcd. for C23H22O5S: C, 67.30; H, 5.40. Found: C, 67.31; H, 5.35.

Provenance & Evidence