1: (2RS)-2-phenylmethylcyclohexanone With lithium diisopropyl amide in tetrahydrofuran T=-78 - 20°C; Inert atmosphere; 2: chloro-trimethyl-silane in tetrahydrofuran T=20°C; 2 h; Inert atmosphere;

1.1: LDA / 1 h / -78 °C 1.2: DMI 2.1: bromomagnesium diisopropylamide / tetrahydrofuran 2.2: Et3N; HMPA / tetrahydrofuran View Scheme

P(o-tol)3 gold(I) chloro complex; silver trifluoromethanesulfonate in 1,4-dioxane T=100°C; 10 h;

PPh3 gold(I) chloro complex; silver perchlorate in benzene T=80°C; 2 h;