Tied back: The title reaction was observed when a silicon‐tethered diene was treated with the Hoveyda–Grubbs second‐generation catalyst. The structural requirements for the E‐olefin‐forming ring‐closing metathesis, and the transition state leading to E olefin are discussed. This methodology will be useful in the synthesis of polyketides containing a pent‐2‐ene‐1,5‐diol unit.
绑起来:用Hoveyda-Grubbs第二代催化剂处理
硅系二烯时,观察到标题反应。讨论了形成E烯烃的闭环复分解的结构要求,以及导致E 烯烃的过渡态。该方法对于合成含有戊-2-烯-1,5
-二醇单元的聚酮化合物将很有用。