Benzoic acid 3-(dimethoxy-phosphoryl)-1,1-dimethyl-2-oxo-propyl ester

5-acetoxy-2-methyl-5-phenyl-3-pentyn-2-ol

4-methyl-1-phenylpenta-2,3-dien-1-one

溴代苯

4,5-Dibromo-2-hydroxy-2-methyl-5-phenyl-3-pentenone