Conjugated Vinylgold(I)-Vinylideneruthenium(II) Complexes and Related Organoruthenium Compounds: Stable Analogues of Intermediates Proposed in Dual Gold Catalysis
作者:Marcel Wieteck、Mie Højer Larsen née Vilhelmsen、Pascal Nösel、Jürgen Schulmeister、Frank Rominger、Matthias Rudolph、Markus Pernpointner、A. Stephen K. Hashmi
DOI:10.1002/adsc.201600255
日期:2016.4.28
species with a phenyl group on the second alkyne provided vinylruthenium(II) complexes in which the ruthenium was still bound to the same carbon as in the starting material, with a tert‐butyl group on the second alkyne vinylruthenium(II) complexes in which the ruthenium has migrated to another carbon, were obtained. This reactivity mimics the initial steps suggested for dual gold catalysis with these
Mechanistic Switch in Dual Gold Catalysis of Diynes: C(sp<sup>3</sup>)-H Activation through Bifurcation-Vinylidene versus Carbene Pathways
作者:Max M. Hansmann、Matthias Rudolph、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1002/anie.201208777
日期:2013.2.25
The other side of the mountain: Changing the framework of diyne systems opens up new cyclization modes for dualgoldcatalysis. Instead of a 5‐endo cyclization and goldvinylidenes a 6‐endo cyclization gives rise to gold‐stabilized carbenes as key intermediates for selective CHinsertions.