2-(Methoxymethyl)benzeneboronic acid → HCID 11515794, compound

Participants

Reaction Steps

A solution of 3-(4-iodo-phenoxymethyl)-benzoic acid methyl ester (of intermediate 1; 37 mg, 0.1 mmol) in dioxane (2 mL) was degassed with nitrogen and then added to a reaction vial containing 2-methoxymethylphenylboronic acid (available from Apollo Scientific Ltd., Stockport, UK). The solution was sonicated and degassed and a solution of sodium hydroxide (4 M, 0.2 mL) was added, followed by bis(tri-cyclo-hexylphosphine)palladium (available from Strem Chemicals, Inc., Newburyport, Mass.; 0.005 mmol) was added. The mixture was degassed and then heated in a microwave oven at 170 degrees for 25 min. The reaction mixture was filtered through silica and the silica washed with dioxane (1 mL), and dimethylacetamide (1 mL). 1 M HCl was added until a solid formed. The vial was centrifuged and the solvent was removed. The crude product was washed with water and centrifuged again for 5 min. The water was decanted and the solid was dried in a vacuum oven at 50 degrees to give 3-(2′-methoxymethyl-biphenyl-4-yloxymethyl)-benzoic acid. Mass spectrum MH+=349.

Provenance & Evidence