hydrogen; nickel in methanol T=50°C; P=3620.13 Torr; 4 h;

chlorosulfonic acid T=60°C; und schliesslich auf 180grad;

hydrogen fluoride; sodium nitrite

n-butyl isocyanante in 1,2-dichloro-benzene Heating;

1.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / |Reflux; |Large scale 2.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / acetonitrile / |Reflux; |Large scale 3.1: platinum sulfide on carbon / tetrahydrofuran; water; ethanol / |Reflux; |Large scale 3.2: |Reflux; |Large scale 3.3: 20 °C / |Large scale 4.1: N,N-dimethyl-formamide / 5 °C / |Large scale View Scheme

ethanol; acetic acid