HCID 21473739, compound → HCID 10107954, compound

Participants

Reaction Steps

The t-butyl 5-(2-ethoxycarbonyl-E-ethenyl)-2-thiophenecarboxylate (7.58 g, 26.8 mmol) prepared in the Preparative Example 14 was catalytically reduced with 10% palladium-carbon (1.05 g) in ethanol at room temperature. After the completion of the reaction, the catalyst was filtered out and the filtrate was concentrated and evaporated to dryness in a vacuum. 7.6 g of the title compound was obtained.

Provenance & Evidence