Synthesis and Spectral Characterization of Some Novel Phosphonyl- and Phosphoryl Pyrazole Compounds
作者:Tarik E. Ali
DOI:10.1002/hc.21110
日期:2013.9
P-dimethylphosphinic hydrazide in the presence of diethyl phosphite to give acyclic α-aminophosphonate 2, cyclic α-aminophosphonates 4–6, and α-hydrazinophosphonate 7, respectively. Also, treatment of aldehyde 1 with cyanoaceto-hydrazide, acetophenone, and malononitrile afforded the condensationproducts 8, 16, and 21, respectively, which in turn, reacted with diethyl phosphite and P,P-dimethylphosphinic
One-Pot Synthesis of Pyrazolyl-Containing α-Aminophosphonates
作者:Si-Yao Lang、Fan Yue、Ling-Hua Cao
DOI:10.1080/10426507.2011.625510
日期:2012.4.1
Abstract A series of novel pyrazolyl-containing α-aminophosphonates were synthesized by one-pot reaction from 4-formylpyrazole, substituted aromatic amines, and dialkylphosphites. The synthesized compounds were characterized by elemental analysis, 1H NMR, and IR spectroscopy. Single-crystal X-ray diffraction data of compounds 4a and 5b were obtained, and some of these compounds showed inhibitory effect