环状（氨基）（膦基硼代叶立德）硅酮：一种显著的室温持久硅酮。
Cyclic (Amino)(Phosphonium Bora-Ylide)Silanone: A Remarkable Room-Temperature-Persistent Silanone.
机构信息
Université de Toulouse, UPS, and CNRS, LHFA UMR 5069 (Equipe-ECOIH), 118 route de Narbonne, 31062, Toulouse, France.
Université de Toulouse, UPS, and CNRS, ICT FR2599, 118 route de Narbonne, 31062, Toulouse, France.
出版信息
Angew Chem Int Ed Engl. 2017 Dec 11;56(50):15916-15920. doi: 10.1002/anie.201710358. Epub 2017 Nov 22.
A silanone substituted by bulky amino and phosphonium bora-ylide substituents has been isolated in crystalline form. Thanks to the exceptionally strong electron-donating phosphonium bora-ylide substituent, the lifetime at room temperature of the silanone is dramatically extended (t =4 days) compared to the related (amino)(phosphonium ylide)silanone VI (t =5 h), allowing easier manipulation and its use as precursor of new valuable silicon compounds. The interaction of silanone with a weak Lewis acid such as MgBr increases further its stability (no degradation after 3 weeks at room temperature).
一个被大体积氨基和膦硼酰基取代的硅烯酮已经被分离成晶体形式。由于膦硼酰基取代基具有非常强的给电子能力，因此硅烯酮在室温下的寿命大大延长（t=4 天），与相关的（氨基）（磷叶立德）硅烯酮 VI（t=5 小时）相比，这使得硅烯酮更容易操作，并可用作新的有价值的硅化合物的前体。硅烯酮与弱路易斯酸（如 MgBr）的相互作用进一步提高了其稳定性（在室温下 3 周后没有降解）。
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