1: 92 percent / CHCl3 / 6 h / Heating 2: 67 percent / 1,5-diazabicyclo<5.4.0>undec-5-ene (DBU) / benzene / 12 h / Heating View Scheme

tris[N-(tert-butyl)(3,5-dimethylphenyl)amido]molybdenum(VI) propylidyne; tris(2-hydroxy-5-nitro-benzyl)amine in tetrachloromethane T=70°C; 3 h; Inert atmosphere;

cobalt(II) 2,4-pentanedionate; 1,2-bis-(diphenylphosphino)ethane in tetrahydrofuran; acetonitrile T=80°C; 12 h; Sealed tubeInert atmosphere; stereoselective reaction;