1: N,N-dimethyl-formamide With trichlorophosphate T=0°C; 2: 1-(4-methylphenyl)-1,2,3,4-tetrahydroquinoline T=90°C;

1.1: 75 percent / tris(dibenzylideneacetone)dipalladium(0); 1,1'-bis(diphenylphosphono)ferrocene; sodium tert-butoxide / toluene / 24 h / 100 °C 2.1: POCl3 / 0 °C 2.2: 80 percent / 90 °C View Scheme

1.1: 75 percent / tris(dibenzylideneacetone)dipalladium(0); 1,1'-bis(diphenylphosphono)ferrocene; sodium tert-butoxide / toluene / 24 h / 100 °C 2.1: POCl3 / 0 °C 2.2: 80 percent / 90 °C View Scheme