Lawesson's reagent → HCID 57818467, compound

Participants

Reaction Conditions

Reaction Steps

N-(5-Fluoro-2-(4-fluorobenzyloxy)pyrimidin-4-yl)acetamide (50 mg, 0.42 mmol) was stirred in a Biotage Initiator® microwave vessel with 1,2-dichloroethane (3 mL) and Lawesson's reagent (170 mg, 0.42 mmol). The vessel was heated in a Biotage Initiator® microwave to 100° C. for 5 minutes then cooled room temperature, filtered, and diluted with CH2Cl2. The reaction mixture was then washed brine, and the layers were separated. The organic extract was dried onto silica and purified by flash chromatography. The product-containing fractions were then evaporated to dryness and purified again by reverse-phase HPLC to give 4 mg of N-(5-fluoro-2-(4-fluorobenzyl-oxy)pyrimidin-4-yl)ethanethioamide (4%) as a yellow glass: 1H NMR (CDCl3) δ 9.34 (b, 1H), 8.29 (d, J=3 Hz, 1H), 7.41 (m, 2H), 7.06 (m, 2H), 5.33 (s, 2H), 3.13 (s, 3H); HPLC-MS (ESI): m/z 294 (ES−).

Provenance & Evidence