Ethyl 2-iodo-3-methylbenzoate → HCID 59314297, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of the 2-iodo-3-methylbenzoic acid ethyl ester (289) (2.9 g-0.01 mol) and 2-methyl-1-propenylboronic acid pinacol ester (3.64 g-0.02 mol-2 eq) in dry DMF (50 mL) and saturated NaHCO3 (10 mL) is degassed for 10 minutes and then treated with tetrakis(triphenylphosphine)palladium(0) (400 mg). The mixture is stirred at 110° C. overnight. The reaction is cooled and the DMF removed in vacuo and the residue diluted with water (120 mL). The aqueous is filtered through hyflo and extracted with EtOAc (3×75 mL). The organic extracts are washed with water (2×50 mL) and brine (2×50 mL), and dried over MgSO4. The organic extracts are concentrated in vacuo and purified by flash chromatography (400 g silica gel, 5% EtOAc in heptane) to give the product as pale yellow oil (1.85 g, 85%).

Provenance & Evidence