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Inside Cover: Palladium‐Catalyzed Asymmetric Dihydroxylation of 1,3‐Dienes with Catechols (Chin. J. Chem. 3/2019)
Authors:Tao Fan  Hong‐Cheng Shen  Zhi‐Yong Han  Liu‐Zhu Gong
Abstract:The inside cover picture shows a palladium‐catalyzed asymmetric dihydroxylation of 1,3‐dienes with catechols utilizing chiral pyridinebis(oxazoline) ligand. The reaction is proposed to proceed via a cascade Wacker‐type hydroxypalladation/asymmetric allylation process. This methodology provides a direct and straightforward synthesis to prepare chiral 2‐substituted 1,4‐benzodioxane motifs in moderate to good yield and enantioselectivity from readily available starting materials. More details are discussed in the article by Gong et al. on page 226–232.
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