Organocatalytic Redox Deracemization of Cyclic Benzylic Ethers Enabled by An Acetal Pool Strategy
作者:Miao Wan、Shutao Sun、Yangshan Li、Lei Liu
DOI:10.1002/anie.201701439
日期:2017.4.24
The first redox deracemization of a series of cyclic benzylic ethers, including 6H‐benzo[c]chromenes, isochromans, and 1H‐isochromenes, is described. An “acetal pool” strategy was adopted to harmonize the complete oxidation of secondary ethers with imidodiphosphoric acid catalyzed asymmetric transfer hydrogenation. The synthetic utility of the process was demonstrated by the effective deracemization
描述了一系列环状苄基醚的首次氧化还原脱硝,其中包括6 H-苯并[ c ]色烯,异色满和1 H-异色酮。采用了“缩醛池”策略,以协调仲醚与亚氨基二磷酸催化的不对称转移氢化反应的完全氧化。该方法的合成效用通过有效地脱除感兴趣的生物活性分子而得到证明,而该生物活性分子很难用其他方法制备。
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