Phosphorus oxychloride → HCID 86662180, compound

Participants

Reaction Steps

At a temperature of 5-10° C., phosphorous oxychloride (1.84 ml, 20.087 mmol) was mixed with N,N-dimethylformamide (2 mL). Then a solution of Intermediate 1 (600 mg, 3.348 mmol) in N,N-dimethylformamide (3 mL) was added while stirring. The reaction mixture was held for 2 h at 95° C., cooled and poured onto ice (10 g). The precipitate formed was filtered off and recrystallised from water to give 300 mg of the product as an off-white solid; 1H NMR (δ ppm, 300 MHz, DMSO-d6) 3.25 (s, 3H), 3.75 (s, 3H), 8.06 (s, 1H), 9.79 (s, 1H), 13.15 (br s, 1H); APCI-MS (m/z) 208.20 (M+H)+.

Provenance & Evidence