875485-67-9

Upstream product

• 875485-64-6 6-amino-5-(4-chlorophenyl)amino-3,6-dihydro-3-phenyl-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-one 
• 603-35-0 triphenylphosphine 
• 863786-32-7 5-(4-chloro-phenyliminomethyleneamino)-1-phenyl-1H-[1,2,3]triazole-4-carboxylic acid ethyl ester 
• 104-12-1 p-chlorphenylisocyanate 
• 90543-08-1 1-Phenyl-5-(triphenylphosphoranylidenamino)-1,2,3-triazol-4-carbonsaeure-ethylester 

Relevant academic research and scientific papers

Iminophosphorane-mediated efficient synthesis of new tricyclic 3,5-dihydro-1,2,3-triazolo[4,5-d]-1,2,4-triazolo[1,5-a]pyrimidin-9-ones

The carbodiimides 2, obtained from aza-Wittig reactions of iminophosphorane 1 with aromatic isocyanates, reacted with hydrazine to give selectively 6-amino-7H-1,2,3-triazolo[4,5-d]pyrimidin-7-ones 5. Compounds 5 were further transformed to iminophosphoran