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Description
| - The present %22gold-rush%22 in chemistry started in the nineties with a report of a gold-catalyzed addition of methanol to alkynes, which shook the conception of gold as an inert metal. Here, we present a mechanism of this reaction and demonstrate that actually two gold cations in cooperation activate the C-C triple bond and mediate the methanol addition, which results directly in formation of a diaurated intermediate. This reaction intermediate was detected by electrospray ionization mass spectrometry, labeling and infrared multiphoton dissociation spectroscopy, which clearly revealed the addition of the methoxy group to the C-C triple bond. The kinetics of the reaction was determined from NMR experiments. The experimental results are complemented by theoretical calculations, which provide an overall picture of the reaction mechanism.
- The present %22gold-rush%22 in chemistry started in the nineties with a report of a gold-catalyzed addition of methanol to alkynes, which shook the conception of gold as an inert metal. Here, we present a mechanism of this reaction and demonstrate that actually two gold cations in cooperation activate the C-C triple bond and mediate the methanol addition, which results directly in formation of a diaurated intermediate. This reaction intermediate was detected by electrospray ionization mass spectrometry, labeling and infrared multiphoton dissociation spectroscopy, which clearly revealed the addition of the methoxy group to the C-C triple bond. The kinetics of the reaction was determined from NMR experiments. The experimental results are complemented by theoretical calculations, which provide an overall picture of the reaction mechanism. (en)
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Title
| - Gold-Gold Cooperation in the Addition of Methanol to Alkynes
- Gold-Gold Cooperation in the Addition of Methanol to Alkynes (en)
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skos:prefLabel
| - Gold-Gold Cooperation in the Addition of Methanol to Alkynes
- Gold-Gold Cooperation in the Addition of Methanol to Alkynes (en)
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skos:notation
| - RIV/00216208:11310/12:10128776!RIV13-GA0-11310___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - I, P(GAP207/11/0338), Z(MSM0021620857)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216208:11310/12:10128776
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - reaction intermediates; kinetics; ion spectroscopy; gold catalysis; density functional calculations (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Angewandte Chemie - International Edition
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Hybelbauerová, Simona
- Váňa, Jiří
- Roithová, Jana
- Jašíková, Lucie
- Janková, Štěpánka
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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http://bibframe.org/vocab/doi
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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