反应详情

From (E)-3-[4,5-bis(4-fluorophenyl)-2-trifluoromethyl-1H-imidazol-1-yl]-2-propenenitrile (484 mg) and diisobutylaluminium hydride (2.2 ml) in dry THF (15 ml) by the process as described for the preparation of Intermediate (4 a) to afford a brown gum (0.53 g) which was purified by FCC eluting with System A (1:4) to afford the title compound (263 mg) as a yellow solid. νmax (Nujol) 1692 cm-1 (C=O).