Stereoselective Synthesis of Cyclic Ethers via the Palladium-Catalyzed Intramolecular Addition of Alcohols to Phosphono Allylic Carbonates
作者:Anyu He、Nongnuch Sutivisedsak、Christopher D. Spilling
DOI:10.1021/ol900980s
日期:2009.7.16
Cross metathesis of the acrolein-derived phosphono allylic carbonate and hydroxy alkenes using second generation Grubbs catalyst and copper(I) iodide gave the substituted phosphonates in good yield. Stereospecific palladium(0)-catalyzed cyclization gave tetrahydrofuran and tetrahydropyran vinyl phosphonates. Regioselective Wacker oxidation of the vinyl phosphonate gave the β-keto phosphonate, which