期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 12, 期 17, 页码 2318-2322出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201700856
关键词
copper; heterogeneous catalysis; hydroboration; nanocubes; nanowires
资金
- Ministry of Science and Technology of Taiwan (MOST) [104-2119-M-007-013-MY3, 105-2633-M-007-003]
Copper nanocubes with average sizes of 82, 95, and 108nm have been synthesized in an aqueous mixture of cetyltrimethylammonium chloride (CTAC) surfactant, copper acetate, and sodium ascorbate reductant heated at 100 degrees C for 40min. Copper nanowires with an average length of 25m can also be prepared this way by simply increasing the volume of sodium ascorbate introduced. Small shifts in the plasmonic absorption band positions with tunable particle sizes have been observed. The copper nanocubes were employed to catalyze hydroboration of phenylacetylene and various substituted aryl alkynes with 100% (E)-product selectivity and 82-95% product yields. The copper nanocubes are cheap to make and should catalyze a broad scope of organic coupling reactions.
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