Acetic Anhydride → HCID 14538666, compound

Participants

Reaction Steps

2.50 g. (8.82 mmoles) of 1-hydroxymethyl-1-ethyl-1,2,3,4,6,7,12,12b-octahydro-indolo[2,3-a] quinolizine are dissolved in 15 ml. of absolute pyridine. 15 ml. of acetic anhydride are added to the solution, and the mixture is allowed to stand at room temperature for three days. Thereafter the solution is evaporated in vacuo, and the oily residue is stirred with a 5% sodium hydrocarbonate solution. The separated solid substance is filtered off, washed with water, dried, and recrystallized first from aqueous methanol and then from methanol. 1.75 g. (61.2%) of the title compound are obtained in the form of shiny crystals melting at 96°-97° C.

Provenance & Evidence