甲基 6-氯-1-苯并呋喃-2-羧酸乙酯

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Magnesium (1.2 g, 50 mmol) is dissolved in 40 ml of methanol. A solution of ethyl-(2-formyl-5-chloro-phenoxy)-acetate (2.1 g, 8.65 mmol) in 15 ml of methanol is added and the resulting mixture is heated under reflux for one hour, cooled, poured in 1N hydrochloric acid (150 ml). After stirring at room temperature the yellow solid is filtered, washed thoroughly with water and dried. Methyl-6-chloro-benzofurancarboxylate is obtained as a yellow solid (0.835 g, 46% yield). C10H7ClO3, MS (M+): 210, Cl pattern the resulting mixture is heated under reflux for one hour cooled is filtered washed thoroughly with water dried