英文别名3-(Triphenylphosphoranylidene)-4,5-dihydrofuran-2(3H)-one; 4,5-Dihydro-3-(triphenylphosphoranylidene)-2(3H)-furanone; 2-(Triphenylphosphoranylidene)-gama-butyrolactone; 3-(Triphenylphosphoranylidene)-gama-butyrolactone; Dihydro-3-(triphenylphosphoranylidene)-2(3H)-furanone; 3-(Triphenylphosphoranylidene)dihydrofuran-2-(3H)-one; 2-(Triphenylphosphoranylidene)-gamma-butyrolactone; 3-(triphenyl-λ5-phosphanylidene)oxolan-2-one; 2-oxo-3-oxa-cyclopentylidenetriphenylphosphorane 
