Methyl morpholine oxide → Ethyl 4-oxocyclohexanecarboxylate

Participants

Reaction Steps

To a vigorously stirring suspension of ethyl 4-hydroxycyclohexanecarboxylate (2.0 g, 12 mmol, Aldrich) and activated 4 Å MS (1.0 g) in acetonitrile (70 mL) at 23° C. was sequentially added 4-methylmorpholine-N-oxide (2.0 g, 17 mmol) and tetrapropylammonium perruthenate (410 mg, 1.2 mmol). After stirring the resulting black suspension for 30 min, the mixture was concentrated in vacuo, and the resulting residue was filtered through a plug of silica gel (30% ethyl acetate in hexanes) to provide ethyl 4-oxocyclohexanecarboxylate as a clear oil (1.93 g, 98%). MS (AP CI) 171 (M+H).

Provenance & Evidence