Sodium Methoxide → HCID 178489618, Verbindung

Beteiligte Stoffe

Reaktionsschritte

Dimethyl 2-(2-methoxyphenoxy)malonate (3.05 g, 12.6 mmol) (Ref. Canadian Patent Application No. CA2071193A, 1992) in methanol (15 ml) was added over 5 minutes to a stirred, 25% w/v solution of sodium methoxide in methanol (8.58 ml, 37.8 mmol of sodium methoxide) at room temperature. The resulting mixture was stirred for 10 minutes and then a solution of 3-pyridazinecarboximidamide hydrochloride (2.0 g, 12.6 mmol) in methanol (15 ml) was added dropwise over 5 minutes and the resulting mixture was stirred at room temperature overnight. The reaction mixture was concentrated under vacuum and then diluted with water (100 ml). The aqueous solution was acidified to pH 4 with sulfuric acid (20%), resulting in the formation of the title compound as a purple solid, which was isolated by filtration (1.4 g).

Herkunft & Nachweise