Diastereoselective Oxyselenylation of 1,n-Diolefins Utilizing PET Generated [PhSeSePh]+. as an Electrophilic Species: An Efficient and General Strategy for the Synthesis of α,α′-trans-Dialkyl Cyclic Ethers
convenient method for hydroxyselenation of olefins so far reported. When the reaction was applied to conjugated dienes, monohydroxyselenated products were obtained in good to excellent yields. From non-conjugated dienes, on the other hand, cyclic ethers containing two phenylseleno groups were produced in good to excellent yields, the first step of this reaction being the hydroxyselenation of one double bond