24
J. Oliver–Meseguer and A. Leyva–Pérez
Fig. 1.22 Conversion time plot for the ω–bromination of phenylacetylene [4] with different amounts
of the Au(I) AuPtBu 3 NTf 2 complex catalyst. The inset maximizes the initial time (Fig. from Ref.
[53]. Copyright © 2013 by John Wiley & Sons, Inc.)
Fig. 1.23 a Bromination–hydration cascade with (10 ± 2.5) nm Au colloidal aqueous solution
(0.25 mm, 0.1 mol%) treated with concentrated HCl (1 mol%, Fig. from Ref. [53]. Copyright ©
2013 by John Wiley & Sons, Inc.)
after two consecutive Au-catalyzed reactions, one involving σ C–H activation and
the other involving π activation of the alkyne.
1.3.2.3 Hydrosilylation of Alkynes (C–Si)
The hydrosilylation of alkynes gives three different possible vinylsilanes depending
on the catalyst used (Fig. 1.24). Extensive research has been performed to obtain
and functionalize the β-products (anti-Markovnikov addition), which can be formed
J. Oliver–Meseguer and A. Leyva–Pérez
Fig. 1.22 Conversion time plot for the ω–bromination of phenylacetylene [4] with different amounts
of the Au(I) AuPtBu 3 NTf 2 complex catalyst. The inset maximizes the initial time (Fig. from Ref.
[53]. Copyright © 2013 by John Wiley & Sons, Inc.)
Fig. 1.23 a Bromination–hydration cascade with (10 ± 2.5) nm Au colloidal aqueous solution
(0.25 mm, 0.1 mol%) treated with concentrated HCl (1 mol%, Fig. from Ref. [53]. Copyright ©
2013 by John Wiley & Sons, Inc.)
after two consecutive Au-catalyzed reactions, one involving σ C–H activation and
the other involving π activation of the alkyne.
1.3.2.3 Hydrosilylation of Alkynes (C–Si)
The hydrosilylation of alkynes gives three different possible vinylsilanes depending
on the catalyst used (Fig. 1.24). Extensive research has been performed to obtain
and functionalize the β-products (anti-Markovnikov addition), which can be formed