(3E,5E,7E)-1-chloro-8-(4-nitrophenyl)octa-3,5,7-trien-2-one

(3E,5E)-1-chloro-6-(4-nitrophenyl)hexa-3,5-dien-2-one

(E)-1-chloro-4-(3-nitrophenyl)but-3-en-2-one

(3-苯氧基-2-氧代亚丙基)三苯基膦烷

1-[2-oxo-3-(triphenyl-λ⁵-phosphanylidene)propyl]pyrrolidine-2,5-dione