Sodium Hydroxide → HCID 23706969, compound

Participants

Reaction Steps

A mixture of 2-oxo-7-(2-pyridyloxy)indoline (2.9 g.), sodium hydroxide (1.3 g.), dioxane (20 ml.) and water (20 ml.) was refluxed under heating for 16 hours with stirring. Dioxane was distilled off from the reaction mixture under reduced pressure, and water was added to the residue. The solution was washed with ethyl acetate and filtered, and the filtrate was cooled. The precipitates were collected by filtration, washed with a small amount of cold water and dried to give needles of the captioned compound (2.85 g.). mp 245° to 248° C.

Provenance & Evidence