863786-32-7Relevant academic research and scientific papers
Iminophosphorane-mediated efficient synthesis of new fluorine-containing triazolo[4,5-d]pyrimidin-7-ones
Wang, Tao,Xu, Xiao-Ming,Ke, Xi-Xian,Liu, Xue-Ying,Luo, Jin,Yi, Bei-Xin
, p. 155 - 164 (2012/03/11)
The carbodiimides 3, obtained from aza-Wittig reactions of the corresponding iminophosphorane 2 with 1 equiv. of aromatic isocyanates, were allowed to react in the presence of a catalytic amount of potassium carbonate or EtO-Na+ with
New efficient synthesis of 5,6-disubstituted-3-phenyl-1,2,3-triazolo[4,5-d] pyrimidin-7-ones via a tandem aza-Wittig reaction
Wang, Tao,Ke, Xi Xian,Zhou, Shui Tao,Chen, Hui Zong
, p. 1393 - 1400 (2012/04/17)
Twelve novel 5,6-disubstituted-3-phenyl-1,2,3-triazolo[4,5-d]pyrimidine-7- ones 5a-5l were designed and successfully synthesized via tandem aza-Wittig and annulation reactions of the corresponding iminophosphorances 2, aromatic isocyanate, and substituted
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
Zhao, Jun-Feng,Xie, Chang,Xu, Sheng-Zhen,Ding, Ming-Wu,Xiao, Wen-Jing
, p. 130 - 134 (2007/10/03)
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
A selective synthesis of 3,6-dihydro-7H-1,2,3-triazolo[4,5-d]pyrimidin-7- ones
Zhao, Jun-Feng,Xie, Chang,Ding, Ming-Wu,He, Hong-Wu
, p. 1022 - 1023 (2007/10/03)
The carbodiimides 2, obtained from aza-Wittig reactions of iminophosphorane 1 with aromatic isocyanates, reacted with primary amine RNH2 (R ≠ H, Me) to produce isolable guanidine intermediates 3, which were further treated with sodium ethoxide
Base-catalyzed, efficient synthesis of 5-substituted 3,6-dihydro-7H-1,2,3- triazolo[4,5-d]pyrimidin-7-ones
Zhao, Jun-Feng,Xie, Chang,Ding, Ming-Wu,He, Hong-Wu
, p. 2544 - 2548 (2007/10/03)
The carbodiimides 2, obtained from aza-Wittig reactions of iminophosphorane 1 with aromatic isocyanates, reacted with secondary amines or ROH to give 5-dialkylamino or 5-alkoxy 7H-1,2,3-triazolo[4,5-d]pyrimidin-7-ones 4 in the presence of a catalytic amou
