Synthesis of Aminopyridazines from Azidopyridazines and Tetrazolopyridazines

Article abstract of DOI:10.1055/s-1989-27352

Azidopyridazines 3, 4, 24 and tetrazolo<1,5-b>pyridazines 10, 13, 28 can be converted to the corresponding aminopyridazines, by reaction with triphenylphosphine via phosphazenes and subsequent hydrolysis (Staudinger reaction).