期刊
RSC ADVANCES
卷 5, 期 4, 页码 2647-2654出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra14947e
关键词
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资金
- METI/NEDO
- JST-CREST (Creation of Innovative Functions of Intelligent Materials on the Basis of Element Strategy)
- JSPS [2105]
- Shionogi Co., Ltd.
- [22750141]
- [26810099]
- Grants-in-Aid for Scientific Research [26620090] Funding Source: KAKEN
We have developed a technique for the aqueous aerobic flow oxidation of alcohols in a continuous-flow reactor containing platinum nanoparticles dispersed on an amphiphilic polystyrene-poly(ethylene glycol) resin (ARP-Pt). Various primary and secondary alcohols including aliphatic, aromatic and heteroaromatic alcohols were efficiently oxidized within 73 seconds in a flowing aqueous system at 100-120 degrees C under 40-70 bar of the system pressure to give the corresponding carboxylic acids and ketones, respectively, in up to 99% yield. Benzaldehydes could be also prepared selectively from benzyl alcohols by conducting the flow oxidation under the standard conditions in the presence of triethylamine. Moreover, a practical gram-scale synthesis of surfactants was realized in the aqueous aerobic continuous flow oxidation for 36-116 hours. This aerobic flow oxidation system provides a safe, clean, green, rapid and efficient practical method for oxidizing alcohols.
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