Potassium Carbonate → HCID 60155619, compound

Participants

Reaction Steps

Compound (32a) (4.8 g, 16.4 mmol), methyl 2-oxocyclo-pentanecarboxylate (2.5 mL, 21.9 mmol), and anhydrous potassium carbonate (4.0 g, 28.9 mmol) in acetone (200 mL) were allowed to react in the same manner as in Example 15. The obtained crude product was subjected to silica gel column chromatography and elution with an n-hexane/ethyl acetate (4:1) solution followed by conventional decarboxylation and hydrolysis to give 3.5 g (60%) of compound (33a) of interest as clear yellow oil.

Provenance & Evidence