Hydrochloric Acid → HCID 11326643, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 1-methyl-3-(2-chloro-6-fluorophenyl)-5-(3,4-dichloro-5-(2-trimethylsilyl-ethynyl)-thien-2-yl) [1,2,4]triazole (5.0g, 10.9 mmol) in methanol (20 mL) was added potassium carbonate (1.66 g, 12 mmol) at 0° C., and the resulting off-white suspension was stirred at 0° C. for 3.5 hours. TLC analysis (10% EtOAc/Pentane) indicates complete conversion to product. The reaction was acidified with 2 N hydrochloric acid and extracted with ether (2×100 mL). The organics were combined, washed with brine, dried (sodium sulfate), filtered, and the solvent evaporated under reduced pressure to give a tan solid. Trituration with pentane affords 4.06 g (96%) of product as a tan powder: mp 145-165 (slow decomposition) 1H NMR (CDCl3) δ3.77 (s, 1H,), 4.04 (s, 3H), 7.08-7.14 (m, 1H), 7.29-7.40 (Ar-m, 2H).

Provenance & Evidence