SF5‑Enolates in Ti(IV)-Mediated Aldol Reactions
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https://figshare.com/articles/dataset/SF_sub_5_sub_Enolates_in_Ti_IV_-Mediated_Aldol_Reactions/3490487
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The F···Ti bonding in the transition structures determines high trans- and syn-diastereoselectivities for aldol reactions of SF5-acetates with aldehydes in the presence of TiCl4 in the non-nucleophilic solvent CH2Cl2. Such bonding is canceled in nucleophilic solvents where opposite cis-stereochemistry is observed. The potential of thus obtained stereoisomeric SF5-aryl acrylates as dipolarophiles in the preparation of SF5-containing heterocycles is demonstrated.
创建时间:
2016-08-01



