Diethyl (ethoxymethylene)malonate → HCID 178469779, compound

Participants

Reaction Steps

A solution of diethyl ethoxymethylenemalonate (35.0 g, 162 mmol), trifluoroacetamidine (18 g, 162 mmol) and NaOEt (11.0 g, 162 mmol) in EtOH (200 mL) was heated at reflux for 6 h. The reaction mixture was concentrated and H2O (48 mL) was added. The resulting solid was filtered, washed with Et2O (300 mL) and H2O (200 mL), and dried to give the title compound (21 g, 50% yield); m.p. >220° C. (dec.); 1HNMR (DMSO-d6) δ 8.38, 4.16 (q, 2H), 1.25 (q, 3H).

Provenance & Evidence