Synthesis of Some New Triphenylphosphanylidenes, Alkylphosphonates, and Heterocycles of Pyrazole Derivatives and Their Antimicrobial Activity
作者:Leila S. Boulos、Ewies F. Ewies、Amin F. M. Fahmy、Maysa E. Mohram
DOI:10.1080/10426507.2012.704104
日期:2013.6.1
Abstract The reaction of 5(4H)-pyrazolone with phosphorus ylides afforded new triphenylphosphanylidene alkanone derivatives. Moreover, its benzylidene derivative reacted with Wittig–Horner reagents to give the corresponding dialkoxyphosphoryl, alkyl phosphonate, and heterocyclic products. Treatment of pyrazole-4-carbaldehyde with Wittig–Horner reagents and trialkyl phosphites gave the respective alkyl