Hydrochloric Acid → 3,3-Dimethyl-1,3-dihydro-indol-2-one

Participants

Reaction Steps

3.50 g (17.2 mmol) 1-acetyl-3,3-dimethyl-1,3-dihydro-indol-2-one were refluxed in 50 mL of a 6N hydrochloric acid solution for 1h. After cooling the reaction mixture was divided between tert-butylmethylether and water. The organic phase was washed with water, dried and evaporated down. The residue was crystallised from PE. The solid was suction filtered and dried at 80° C. in the CAD.

Provenance & Evidence