Abstract Both 1, 3-and 1, 4-diketones are obtained from common precursors, β-methoxy-γ- phenylthio ketones. These compounds are derived through the novel phenylthio migration reaction of the aldehyde adducts with methoxy (phenylthio)-methane upon exposure to enol silyl ethers. The compounds thus obtained are converted into 1, 3-and 1, 4-diketones.
