20184-96-7Relevant articles and documents
An α-hydrazinoalkylphosphonate as building block for novel N-phosphonoalkylheterocycles
Li, Zai-Guo,Sun, Hui-Kai,Wang, Qing-Min,Huang, Run-Qiu
, p. 384 - 386 (2007/10/03)
α-Hydrazinoalkylphosphonate 3 is a useful building block for the syntheses of novel N-phosphonoalkylheterocycles. N-phosphonoalkylpyrazoles 8 and 9 were prepared by the cyclization reaction of 3 with malfunctioned ethenes 5 and 6 in ethanol under reflux. N-Phosphonoalkyltriazole 10 was synthesized from 3 with N-dimethylthiomethylene benzoyl amide 4 in ethanol under reflux. The structures were confirmed by IR, 1H NMR, mass spectroscopy, and elemental analysis. At the same time, the preparation of 4 was investigated.