期刊
GREEN CHEMISTRY
卷 17, 期 1, 页码 173-177出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4gc01419g
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资金
- JSPS [25106010]
- MEXT program Elements Strategy Initiative to Form Core Research Center
- Grants-in-Aid for Scientific Research [26289299] Funding Source: KAKEN
Pt-loaded HBEA (H+-exchanged BEA zeolite) is found to be an effective and reusable heterogeneous catalyst for regioselective N-alkylation of indoles with primary aliphatic and benzylic alcohols under additive-free conditions driven by the borrowing-hydrogen methodology. Structural and mechanistic studies suggest a cooperative mechanism of the Pt-0 site on Pt metal clusters and the Bronsted acid site of the zeolite, in which the Pt-0 site is responsible for dehydrogenation/hydrogenation steps and the Bronsted acid site is responsible for the regioselective condensation of indoles with aldehydes to the enamine intermediate.
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