Acetaldehyde → 81244-91-9

Participants

Reaction Steps

A suspension of trans-4,6,6a,8,9,10a-hexahydro-7H-indolo-[3,4 gh]-[1,4]-benzoxazine (650 mg, 0.03 m) acetaldehyde (260 mg, 0.006 m) and Pd/c (10%, 700 mg) in abs. ethanol (50 ml) is hydrogenated at room temperature for 4 hours. The catalyst is removed by filtration, and the solvent is removed under reduced pressure (20 mm). The oil is recrystallized from methanol to yield 430 mg of trans 4,6,6a,8,9,10a-hexahydro-7-ethyl-7H-indolo-[3,4 gh]-[1,4]benzoxazine, m.p. turns brown 200° melt 210°-213°.

Provenance & Evidence