5-Cyclohex-1-enyl-6-(2,2,2-trifluoroethoxy)nicotinic acid methylester → Methyl 5-cyclohexyl-6-(2,2,2-trifluoroethoxy)nicotinate

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Reaction Steps

5-Cyclohex-1-enyl-6-(2,2,2-trifluoroethoxy)nicotinic acid methylester (Example 2a, 163 mg, 517 μmmol) was dissolved in ethanol (5 mL). Palladium (10% on charcoal, 16.3 mg, 517 mmol) was added; the suspension was evacuated, flushed with hydrogen gas 3 times and stirred for 1.5 h at ambient temperature. The reaction mixture was filtered through Celite® and concentrated in vacuo to give the title compound (95 mg, quant.) as grey solid that was used in the subsequent reactions without further purification; MS (ESI) 318.1 (M+H)+.

Provenance & Evidence