Advanced synthesis and catalysis p. 3572 - 3578 (2018)
Update date:2022-08-29
Topics:
Bergmann, Marvin
Heidrich, Maximillian
Müller-Borges, Dorian
Plenio, Herbert
The virtually quantitative, room temperature hydration of various terminal and internal alkynes in methanol/water requires between 0.01–0.05 molpercent of [AuCl(NHC)] activated with 1.5 equiv. of silver triflate and 45 equiv. of triflic acid (both relative to gold complex) with ton of up to 300.000. Iptycenyl-substituted NHC ligands play the key role and the most efficient NHC ligand is characterized by a hemispherical shape formed by two N-pentiptycenyl substituents. (Figure presented.).
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