Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
Present address: Department of Chemistry, University of Oxford, 12 Mansfield Road, OX13TA, Oxford, UK.
Angew Chem Int Ed Engl. 2017 Feb 13;56(8):2198-2202. doi: 10.1002/anie.201610254. Epub 2017 Jan 18.
A bulky substituted stannane ArSnH (Ar=2,6-(2',4',6'-triisopropylphenyl)phenyl) was treated with the well-known frustrated Lewis pair (FLP) PtBu /B(C F ) in varying stoichiometries. To some degree, hydride abstraction and adduct formation is observed, leading to [ArSnH (PtBu )] which is rather unreactive toward further dehydrogenation. In a competing process, the FLP proved to be capable of completely striping-off hydrogen and hydrides to generate the first cationic phosphonio-stannylene [ArSn(PtBu )] . This behavior provides insight into the activation/abstraction mechanism processes involved in these Group 14 hydride derivatives.
一个庞大的取代锡烷 ArSnH（Ar=2,6-(2',4',6'-三异丙基苯基)苯基）与著名的受阻路易斯对（FLP）PtBu /B(C F )以不同的化学计量比反应。在某种程度上，观察到了氢化物的抽取和加合物的形成，导致生成了[ArSnH（PtBu ）]，其进一步脱氢反应性较差。在一个竞争过程中，FLP 被证明能够完全脱去氢和氢化物，生成第一个阳离子膦烯基锡烷[ArSn（PtBu ）]。这种行为提供了对这些 Group 14 氢化物衍生物的激活/抽取机制过程的深入了解。
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