1: dimethyl(prop-1-en-2-yl)aluminum With copper(I) thiophene-2-carboxylate; 1,1-bis(3,5-dimethylphenyl)-N,N-bis((S)-1-(naphthalen-2-yl)ethyl)phosphinamine in diethyl ether T=-30°C; 0.25 h; Inert atmosphere; 2: 3-(but-3-en-1-yl)cyclohex-2-en-1-one in diethyl ether T=-30°C; 18 h; Inert atmosphere; enantioselective reaction;