90543-08-1Relevant articles and documents
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)
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
experimental part, 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
A new and facile method for synthesis of Aza-Wittig reagents under microwave irradiation
Chen, Mindong,Yuan, Guangpu,Yang, Shiyan
, p. 1287 - 1294 (2007/10/03)
We report a simple and quick synthetic method of some new Aza-Wittig reagents in anhydrous acetonitrile under microwave irradiation. 1-Substituted aryl-4-ethoxycarbonyl-5-[(triphenylphosphoranylidene)amino]-1, 2, 3-triazoles can be obtained within three m
Heterocyclic β-Enamino Esters, 31 Novel 6:7-, 6:8-, and 5:6:7-Combinations of Heterocondensed Pyrimidines from Iminophosphoranes of Heterocyclic β-Enamino Esters. - Stable Heterocyclic Ylides
Wamhoff, Heinrich,Haffmanns, Guenter
, p. 585 - 621 (2007/10/02)
With acetylenic esters the (5-azolylimino)triphenylphosphoranes 10a-d do not show any cycloaddition tendency, while the (2-thienylimino)triphenylphosphoranes 8a,b yield the stable ylids 13a,b.By treatment with phenyl isocyanate the iminophosphoranes 16a-m