1: 8-N,N-dibutylaminochrysenyl-(1)-methyltriphenylphosphonium bromide With sodium methylate in methanol 3 h; Heating; 2: 5-isoquinoline-carboxaldehyde in methanol Heating;

1.1: 50 percent / aq. HBr / 0.17 h / 60 °C 2.1: MeONa / methanol / 3 h / Heating 2.2: 80 percent / methanol / Heating View Scheme

1.1: MeONa / methanol / 3 h / Heating 1.2: 80 percent / methanol / Heating View Scheme