Sodium Hydroxide → HCID 12797256, compound

Participants

Reaction Conditions

Reaction Steps

A solution of sodium hydroxide (15 g) in water (100 ml) was added dropwise during 30 minutes to a refluxing solution of methyl 3-(n-dodecyl)indole-6-carboxylate (12.8 g prepared as hereinbefore described in Example 85) in methanol (800 ml). The mixture was stirred and refluxed for 12 hours. The mixture was then concentrated to 500 ml volume and water (400 ml) was added. After cooling to 0° C., a solid was collected and was dissolved in hot glacial acetic acid (300 ml). The solution was then poured into water (800 ml) and a solid was collected, washed with water (4×100 ml) and dried at 60° C. Recrystallisation of the solid from methanol gave 3-(n-dodecyl)indole-6-carboxylic acid (9.0 g), in the form of a white solid, m.p. 181°-184° C.

Provenance & Evidence