Benzyl Bromide → 3-Benzyl-5-methylbenzaldehyde

Participants

Reaction Steps

To a DME solution (0.1 M) of (3-formyl-5-methylphenyl)boronic acid (1 eq.) was added cesium fluoride (3 eq.), tetrakis(triphenylphosphine)palladium (0.1 eq.) and benzyl bromide (1.2 eq.). The mixture was refluxed for 3 h, cooled down to RT and quenched with saturated aqueous sodium bicarbonate. The mixture was extracted with ethyl acetate. The combined organic extracts were then washed with brine, dried over Na2SO4, filtered and the filtrate concentrated in vacuo. Purification of the crude product by way of flash chromatography (SiO2, Hex→7:3 (v/v) Hex:EtOAc) afforded the title compound.

Provenance & Evidence