Trifluoroacetic acid → HCID 13603312, compound

Participants

Reaction Steps

To a slurry of 30.3 g. (0.138 mole) of 5-ethyl-3-hydroxy-6-oxo-2,3,6,7-tetrahydro-furo[2,3-f]indole in 950 ml. of acetonitrile at 25° C. was added 7 ml. of a 10% solution of trifluoroacetic acid in acetonitrile, and the reaction was allowed to stir at room temperature for 12 hours. The clear solution was evaporated to give a quantitative yield of the product. A small sample was recrystallized from hexane, m.p. 112°-113° C.

Provenance & Evidence