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Beilstein J. Org. Chem. 2013, 9, 1925–1930, doi:10.3762/bjoc.9.227
Graphical Abstract
Scheme 1: Generation of α-oxo gold carbenes via intermolecular oxidation of alkynes: a non-diazo approach.
Scheme 2: Gold-catalyzed regioselective oxidation of a sterically biased internal alkyne.
Scheme 3: Gold-catalyzed oxidation of the propargylic acetate 4a and the mechanistic rationale.
Scheme 4: A drastically different outcome by using diphenyl sulfoxide as the oxidant.
Figure 1: The impact of ligands on the ratio of 5a-OAc and 5a-H in the gold-catalyzed oxidation of 4a (reacti...
Figure 2: Natural charges at and the 13C chemical shifts of the alkynyl carbons in 4a.
Beilstein J. Org. Chem. 2011, 7, 596–600, doi:10.3762/bjoc.7.69
Scheme 1: Gold-catalyzed intermolecular oxidation of alkynes and allenes.
Scheme 2: A side reaction from 1l.
Scheme 3: A proposed reaction mechanism.