Phosphorus oxychloride → HCID 86606406, compound

Participants

Reaction Steps

A solution of POCl3 (15 mL) and 6-(4-ethoxyphenyl)4,5,7-trimethyl-2,6-dihydro-1H-pyrrolo[3,4-d]pyridazin-1-one (1.5 g) were combined and heated at reflux for 48 h. The reaction mixture was allowed to cool to rt, and was quenched by the careful addition of water (50 mL) followed by a saturated aqueous solution NaHCO3 (50 mL). The reaction mixture was extracted with CH2Cl2 (5×50 mL), and the combined organic extracts were dried (MgSO4) and concentrated under reduced pressure to yield 1-chloro-6-(4-ethoxyphenyl)-4,5,7-trimethyl-6H-pyrrolo[3,4-d]pyridazine as a yellow/green solid. MS (ESI) 316 (M+H)+.

Provenance & Evidence