177720-01-3Relevant academic research and scientific papers
Stereoselective synthesis and biological activities of diethyl (E)-{[4-cyano-5-[[(disubstitutedamino)methylene]amino]-3-(methylthio) -1H-pyrazol-1-yl]substituited phenylmethyl}phosphonates
Xiao, Lin-Xia,Shi, De-Qing
experimental part, p. 555 - 559 (2009/09/06)
(Chemical Equation Presented) Diethyl {[5-amino-4-cyano-3-(methylthio)-1H- pyrazol-1-yl]substitutedphenylmethyl}phosphonates 3 were efficiently synthesized via the condensation of [(1-hydrazino)substitutedphenylmethyl]phosphonates 1 with 2-[bis(methylthio
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.
Studies of organophosphorus compounds 91: A novel synthesis of 1-hydrazinoalkylphosphonic acids and derivatives thereof
Yuan,Li
, p. 507 - 510 (2007/10/03)
Condensation of diethyl phosphite with aldehydes followed by subsequent sulfonylation of the resulting hydroxy group formed with mesyl chloride gave the corresponding 1-sulfonyloxyalkylphosphonates, which led to the convenient synthesis of 1-hydrazinoalky
