Zn(N3)2/bis-pyridine complex; triphenylphosphine; diethylazodicarboxylate in toluene

lithium azide in N,N-dimethyl-formamide T=90°C; Elimination; 0.75 h;

lithium azide in N,N-dimethyl-formamide T=90°C; Substitution; 20 h;

sodium azide; N-ethyl-N,N-diisopropylamine; triphenyl-phosphine oxide; trifluoromethylsulfonic anhydride in toluene T=40°C; Mitsunobu reaction; 24 h; Product distribution; Further Variations:SolventsReagents;

sodium azide T=90°C; Formylation; 43 h;