Hydrogenative Cycloisomerization and Sigmatropic Rearrangement Reactions of Cationic Ruthenium Carbenes Formed by Catalytic Alkyne
<i>gem</i>
‐Hydrogenation
作者:Tobias Biberger、Stephan N. Hess、Markus Leutzsch、Alois Fürstner
DOI:10.1002/anie.202113827
日期:2022.2.14
unprecedented hydrogenation reactions are disclosed, commencing with geminal delivery of both H-atoms of H2 to the triple bond of a propargyl alcohol derivative. When catalyzed with cationicrutheniumcomplexes, the resulting pianostool carbenes are so “hot” that they are readily intercepted by tethered nucleophiles, resulting in cycloisomerization or [2,3]-sigmatropic rearrangement reactions.