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.