Phosphorus pentachloride → HCID 53915162, compound

Participants

Reaction Steps

Potassium salt of 2-cyano-3-hydroxy-acrylic acid ethyl ester described in Preparation Example C-1 (18 g, 0.1 mol) was dissolved in dichloromethane (80 mL), phosphorus pentachloride (20.9 g, 0.1 mol) was added, and the solution was stirred for 2 hours under reflux. After the reaction was completed, the residue obtained by evaporating dichloromethane was subjected to distillation in vacuo, and ethyl(chloromethylene)cyanoacetate (9.5 g, 56 mmol) was obtained.

Provenance & Evidence