1: hexa(ethylene glycol) With sodium hydride in N,N-dimethyl-formamide T=20°C; Inert atmosphere; 2: 11-bromo-undec-1-ene in N,N-dimethyl-formamide T=0 - 20°C; Inert atmosphere;

2,2'-azo-bisisobutyronitrile in tetrahydrofuran T=20°C; 3 h; Inert atmosphereUV-irradiation;

1: AIBN / methanol / 6 h / Irradiation 2: 0.1 M HCl / methanol / 4 h / Heating View Scheme

sodium hydride 1.) DMF, 0 deg C, 10 min, 2.) DMF, a) RT, 6 h, b) 40 deg C, 10 h; Yield given. Multistep reaction;

1.1: N-ethyl-N,N-diisopropylamine / dichloromethane / 20 °C / Inert atmosphere 2.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 20 °C / Inert atmosphere 2.2: 20 °C / Inert atmosphere 3.1: α,α'-azodiizobutyramidine-dihydrochloride / methanol / Reflux; Inert atmosphere 4.1: trifluoroacetic acid / dichloromethane / 1 h / 20 °C 5.1: hydrogenchloride; water / methanol / Reflux; Inert atmosphere View Scheme