ethyl 2-(3-oxocyclohexyl)acetate

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 1,3-diethyl 2-(3-oxocyclohexyl)propanedioate (28.50 g, 111.20 mmol, 1.00 equiv) and sodium chloride (7.02 g, 1.10 equiv) in a mixture of water (4 mL)/DMSO (80 mL) was heated for 24 h at 180° C. in an oil bath. After cooled down to r.t, the reaction was then diluted with water, extracted with 3×300 mL of ethyl acetate. The organic layers were combined, washed with water and brine, dried over anhydrous sodium sulfate and concentrated under vacuum to give ethyl 2-(3-oxocyclohexyl)acetate (22.7 g, crude) as yellow oil which was used for next step without purification. After cooled down extracted with 3×300 mL of ethyl acetate washed with water and brine dried over anhydrous sodium sulfate concentrated under vacuum

Conditions: temp:180.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 1,3-diethyl 2-(3-oxocyclohexyl)propanedioate (28.50 g, 111.20 mmol, 1.00 equiv) and sodium chloride (7.02 g, 1.10 equiv) in a mixture of water (4 mL) and DMSO (80 mL) was heated for 24 h at 180° C. in an oil bath. After cooling to r.t, the reaction was diluted with water and extracted with 3×300 mL of ethyl acetate. The organic layers were combined, washed with water and brine, dried over anhydrous sodium sulfate and concentrated under vacuum to give the desired ethyl 2-(3-oxocyclohexyl)acetate (22.7 g, crude) as a yellow oil. After cooling extracted with 3×300 mL of ethyl acetate washed with water and brine dried over anhydrous sodium sulfate concentrated under vacuum