(methylthio)triphenylphosphonium trifluoromethanesulfonate

(methylselanyl)triphenylphosphonium trifluoromethanesulfonate

2-(2-oxo-1-(triphenylphosphoranylidene)propyl)-1H-indazol-3(2H)-one

2-formyl-4,5-methylenedioxy-phenylazo(methoxycarbonyl)methylenetriphenylphosphorane

5-bromo-3-oxoindazolin-2-yl(methoxycarbonyl)methylenetriphenylphosphorane