Sodium Carbonate → 2-Methyl-2-cyano-7-(2-ethyl-4-(4-fluorophenyl)-5-benzyloxyphenoxy)heptane

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Reaction Steps

A solution of 1.5 g of 2-methyl-2-cyano-7-(2-ethyl-4-bromo-5-benzyloxyphenoxy)heptane and 0.5 g of tetrakis(triphenylphosphine)palladium(0) in 70 mL of benzene was stirred with 15 mL of 2.0M sodium carbonate. A solution of 1.1 g of 4-fluorophenyl boronic acid in 15 mL of ethanol was added. The mixture was heated at reflux for 16 hours. The mixture was cooled and diluted with ethyl acetate. The organic phase was washed with saturated ammonium chloride, washed with saturated sodium chloride, dried over sodium sulfate, and evaporated in vacuo. The residue was chromatographed on silica gel eluting with hexane/ethyl ether to provide 1.44 g (93%) of the desired title intermediate. NMR.

Provenance & Evidence