148533-86-2Relevant academic research and scientific papers
2-Phosphinotetrazoles and their Transformation to 1,3,4,2λ5-Thia- and -Selenadiazaphosphole Dimers
Schmidpeter, Alfred,Jochem, Georg
, p. 93 - 97 (2007/10/02)
Potassium 5-phenyl- and 5-methyltetrazolate react with chlorophosphines to give selectively the corresponding 2-phosphinotetrazoles 1.Oxidation by sulfur and selenium leads to 2-thio- and 2-selenophosphinotetrazoles (6, 7) which on heating loose nitrogen and yield the dimers 8, 9 of thia- and selenadiazaphospholes.N-Phosphinoylnitrilimines are assumed to be formed as intermediates.The small 1JSeP coupling constants indicate that the selenium atoms occupy axial positions and the tbp coordination of phosphorus in 9.Keywords: Tetrazole Substitution, Nitrogen Elimination, Phosphinoyl Nitrilamines, Thiadiazaphospholes, Selenadiazaphospholes
