A new procedure for the reductive desulfonylation of β-keto sulfones is described. The reaction proceeds under a photochemical conditions with the Hantzschester in pyridine in the presence of ruthenium(II). Various functional groups are unaffected under the reaction conditions. Application of the procedure to the syntheses of certain natural products is also described.
描述了一种用于 β-酮砜还原脱磺酰化的新程序。在钌 (II) 存在下,该反应在光化学条件下与在吡啶中的 Hantzsch 酯进行。各种官能团在反应条件下不受影响。还描述了该程序在某些天然产物合成中的应用。