1. Catalytic Methylation of C-H Bonds Using CO2 and H2.
- Author
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Li, Yuehui, Yan, Tao, Junge, Kathrin, and Beller, Matthias
- Subjects
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METHYLATION , *CARBON-hydrogen bonds , *CARBON dioxide , *HYDROGEN , *CATALYTIC activity , *NUCLEOPHILES , *POLYOXYMETHYLENE , *CARBOXYLATION - Abstract
Formation of C-C bonds from CO2 is a much sought after reaction in organic synthesis. To date, other than C-H carboxylations using stoichiometric amounts of metals, base, or organometallic reagents, little is known about C-C bond formation. In fact, to the best of our knowledge no catalytic methylation of C-H bonds using CO2 and H2 has been reported. Described herein is the combination of CO2 and H2 for efficient methylation of carbon nucleophiles such as indoles, pyrroles, and electron-rich arenes. Comparison experiments which employ paraformaldehyde show similar reactivity for the CO2/H2 system. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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