期刊
JOURNAL OF CHEMICAL RESEARCH
卷 45, 期 7-8, 页码 708-715出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1747519821989963
关键词
alkylation; dehydrogenation; hydrogen-borrowing; nanoparticle; nanorod
资金
- National Natural Science Foundation of China [21776111, 21861039]
Ag@MnO2 nanorods exhibit excellent catalytic activity in hydrogen-borrowing reactions and tert-butyl ester synthesis, acting as a Lewis acid and following a radical pathway in the respective reactions.
Silver/manganese dioxide (Ag@MnO2) nanorods are synthesized and characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy. It was discovered that Ag@MnO2 nanorods can realize hydrogen-borrowing reactions in high yields and are also effective for the synthesis of tert-butyl esters from aryl cyanides and tert-butyl hydroperoxide in a short period of time. Mechanistic experiments revealed that this catalytic system acts as a Lewis acid in hydrogen-borrowing reactions, while the synthesis of tert-butyl esters occurs through a radical pathway. This is the first report on the excellent catalytic activity of Ag@MnO2 nanorods as a catalyst.
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