copper(II) bis(trifluoromethanesulfonate); 1-((1S)-1-hydroxymethyl-3-methyl-butyl)-3-(2,4,6-trimethylphenyl)-4,5-dihydro-3H-imidazol-1-ium hexafluorophosphate in diethyl ether T=-30°C; Michael Addition; 4 h; Inert atmosphereSchlenk technique;

copper(I) thiophene-2-carboxylate; 1,1-diphenyl-N,N-bis(1-phenylethyl)phosphinamine in diethyl ether T=-30°C; Michael Addition; 4 h; Inert atmosphereSchlenk technique;