1: 3-fluorobenzenecarboxaldehyde With N-[3,5-bis(trifluoromethyl)benzyl]quinidinium bromide; (1,3-bis(2',6'-di-iso-propylphenyl)imidazol-2-ylidene)CuF in toluene T=-78°C; 0.166667 h; Inert atmosphere; 2: (trifluoromethyl)-trimethylsilane in toluene T=-78°C; 2 h; Inert atmosphere; 3: With tetrabutyl ammonium fluoride in tetrahydrofuran T=20°C; Inert atmosphere; Overall yield = 87 percent; enantioselective reaction;

Birman's catalyst in di-isopropyl ether T=0°C; 1 h; Inert atmosphere; optical yield given as percent eeenantioselective reaction;