Aniline → HCID 86670006, compound

Participants

Reaction Steps

A mixture of methyl 3-oxovalerate (5.21 g, 40.0 mmol), aniline (3.66 mL, 40.0 mmol), p-toluenesulfonic acid monohydrate (533 mg, 2.80 mmol) and cyclohexane (25 mL) was stirred with heating under reflux for 2 hr. The mixture was concentrated under reduced pressure, the insoluble material was removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluate, hexane:ethyl acetate=98:2→94:6) to give the title compound (5.93 g, 72%) as a colorless oil.

Provenance & Evidence