期刊
NATURE CATALYSIS
卷 3, 期 12, 页码 1002-1009出版社
NATURE RESEARCH
DOI: 10.1038/s41929-020-00533-6
关键词
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资金
- FWO [1S17620N, G0D0518N, G0F2320N, G078118N]
- Flemish government (CASAS Methusalem programme)
- European Union's Horizon 2020 research and innovation programme (consolidator ERC grant) [647755]
- Research Foundation - Flanders (FWO)
- Russian Science Foundation (joint RSF-FWO) [20-43-01015]
- Slovenian Research Agency [P1-0021, N1-0079]
- Russian Science Foundation [20-43-01015] Funding Source: Russian Science Foundation
The selective activation of inert C-H bonds has emerged as a promising tool for avoiding the use of wasteful traditional coupling reactions. Oxidative coupling of simple aromatics allows for a cost-effective synthesis of biaryls. However, utilization of this technology is severely hampered by poor regioselectivity and by the limited stability of state-of-the-art homogeneous Pd catalysts. Here, we show that confinement of cationic Pd in the pores of a zeolite allows for the shape-selective C-H activation of simple aromatics without a functional handle or electronic bias. For instance, out of six possible isomers, 4,4 '-bitolyl is produced with high shape selectivity (80%) in oxidative toluene coupling on Pd-Beta. Not only is a robust, heterogeneous catalytic system obtained, but this concept is also set to control the selectivity in transition-metal-catalysed arene C-H activation through spatial confinement in zeolite pores.
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