tributyl-amine; triphenylphosphine; palladium diacetate in N,N,N',N',N'',N''-hexamethylphosphoric triamide T=100°C; 5 h;

tributyl-amine; triphenylphosphine; palladium diacetate in N,N,N',N',N'',N''-hexamethylphosphoric triamide T=120°C; 3 h; var. temp., var. times; Product distribution;

1: 61 percent / PPh3, n-Bu3N / Pd(OAc)2 / hexamethylphosphoric acid triamide / 5 h / 100 °C 2: 90 percent / H2 / PtO2 / ethanol View Scheme