3-ethoxy-1-phenyl-4-(triphenylphosphonio)buta-1,3-dien-1-olate

2-bromo-1,5-diphenyl-penta-1,4-dien-3-one

3-Aethoxy-1,5-diphenyl-2,4-pentadien-1-on

4,5-dibromo-1,5-diphenyl-pent-1-en-3-one

二苄叉丙酮