1.1: sodium / Inert atmosphere 1.2: 12 h / 110 °C / Inert atmosphere 2.1: ammonium chloride; zinc / methanol; water / 2 h / 20 °C / Inert atmosphere 3.1: hydrogen bromide; copper(I) bromide; lithium bromide; sodium nitrite / tetrahydrofuran / 20 °C / Inert atmosphere; Cooling with ice View Scheme

N-bromosuccinmide; iron; trifluoroacetic acid T=75°C; 72 h;

Diazotization.Zers. der Diazoverbindung mit Cuprobromid;