Phosphorus oxychloride → HCID 86707952, compound

Participants

Reaction Steps

A solution of ethyl 2-[3-hydroxy-8-thia-4,6-diazatricyclo[7.4.0.0^[2,7]]trideca-1(9),2(7),3,5,10,12-hexaen-12-yl]acetate (2.10 g, 7.28 mmol, 1.00 equiv) in POCl3 (23 mL) was stirred for 1 h at 90° C. in an oil bath. The reaction mixture was cooled to room temperature and concentrated under reduced pressure. The residue dissolved in EtOAc was poured into a cooled saturated aqueous sodium bicarbonate, extracted with ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by a silica gel column chromatography with ethyl acetate/petroleum ether (1:5) to afford ethyl 2-[3-chloro-8-thia-4,6-diazatricyclo[7.4.0.0^[2,7]]trideca-1(9),2(7),3,5,10,12-hexaen-12-yl]acetate (1.61 g, 72%) as a white solid. LCMS (ES, m/z): 307 and 309 (M+H+).

Provenance & Evidence