Molecules | |
Hydrogenations without Hydrogen: Titania Photocatalyzed Reductions of Maleimides and Aldehydes | |
David W. Manley1  Luca Buzzetti1  Andrew MacKessack-Leitch1  | |
关键词: photocatalysis; reduction; titania; maleimides; aldehydes; | |
DOI : 10.3390/molecules190915324 | |
来源: mdpi | |
【 摘 要 】
A mild procedure for the reduction of electron-deficient alkenes and carbonyl compounds is described. UVA irradiations of substituted maleimides with dispersions of titania (Aeroxide P25) in methanol/acetonitrile (1:9) solvent under dry anoxic conditions led to hydrogenation and production of the corresponding succinimides. Aromatic and heteroaromatic aldehydes were reduced to primary alcohols in similar titania photocatalyzed reactions. A mechanism is proposed which involves two proton-coupled electron transfers to the substrates at the titania surface.
【 授权许可】
CC BY
© 2014 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
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RO202003190021726ZK.pdf | 824KB | download |