Water → HCID 22483528, compound

Participants

Reaction Steps

10 g of palladium on carbon at 5% by weight and containing 50% water were added to a solution of 19.3 g of 4-oxo-4,5,6,7-tetrahydro-1-N-(β-hydroxypropyl)indole, obtained in the preceding stage, in 300 cm3 of diglyme. The temperature of the reaction medium was raised to the reflux temperature of diglyme for 5 hours, after removing the water by azeotropy. The catalyst was then filtered off on celite and then the diglyme was evaporated off. 17 g of crude product were obtained. After chromatography on silica gel (heptane/ethyl acetate=1/4), 15 g of viscous product were obtained, which product was crystallized by the addition of 15 cm3 of dichloromethane.

Provenance & Evidence