Trityl chloride → 4-Iodo-5-methyl-1-trityl-1H-imidazole

Participants

Reaction Steps

To a cold (0° C.) solution of 4-iodo-5-methylimidazole (5.0 g, 24.0 mmol) and triethylamine (5.0 mL, 36.0 mmol) in CH2Cl2 (100 mL) and 1,4-dioxane (50 mL) was added trityl chloride (8.0 g, 29.0 mmol). The resultant mixture was stirred for 2 hours and quenched with ice and extracted with diethyl ether. The organic extracts were washed with sat. aq. NaHCO3, dried (K2CO3) and the solvent evaporated in vacuo. The product mixture was concentrated onto silica gel and chromatographed (Silica gel, 30-50% EtOAc in hexanes) to afford the title compound as a pale yellow powder.

Provenance & Evidence