148533-95-3

Upstream product

• 64073-60-5 potassium salt of 5-phenyltetrazole 
• 1015-37-8 diphenylthiophosphinoyl chloride 
• 18039-42-4 5-phenyl-2H-1,2,3,4-tetrazole 
• 148533-85-1 2-Diphenylphosphanyl-5-phenyl-2H-tetrazole 

Relevant academic research and scientific papers

2-Phosphinotetrazoles and their Transformation to 1,3,4,2λ5-Thia- and -Selenadiazaphosphole Dimers

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

VIER- UND FUENFGLIEDRIGE PHOSPHORHETEROCYCLEN, LVI. 1,3,4,2λ5-thiadiazaphosphole

Thiophosphoryltetrazoles generated from 5-methyl and 5-phenyl tetrazoles and thiophosphoryl chlorides easily lose nitrogen and give the dimers 11 of 1,3,4,2λ5-thiadiazaphospholes.Rate of nitrogen elimination and yield depend on the substituents