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Real-Time Monitoring of the Catalytic Oxidation of Alcohols to Aldehydes and Ketones on Resin Support by Single-Bead Fourier Transform Infrared Microspectroscopy

Yan, Bing ; Sun, Qun ; Wareing, James R ; Jewell, Charles F

The Journal of organic chemistry, 13 December 1996, Vol.61(25), pp.8765-8770 [Peer Reviewed Journal]

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  • Title:
    Real-Time Monitoring of the Catalytic Oxidation of Alcohols to Aldehydes and Ketones on Resin Support by Single-Bead Fourier Transform Infrared Microspectroscopy
  • Author: Yan, Bing ; Sun, Qun ; Wareing, James R ; Jewell, Charles F
  • Description: Catalytic oxidations of primary, benzylic, and secondary alcohols to aldehydes and ketone using tetra-n-propylammonium perruthenate (TPAP) were carried out on resin supports for the first time. The reaction time course, percent conversion, and influence of catalyst amount have been determined by analyzing IR spectra taken directly on a single resin bead in real time. Using 0.2 equiv of TPAP, a 92-97% conversion of alcohol to aldehyde or ketone has been achieved in 0.7-4 h based on the rates (rate constants (1.9 x 10(-)(4))-(2.5 x 10(-)(3)) s(-)(1)) of disappearance and appearance of IR bands characteristic for alcohol, aldehyde, and ketone. The rapid adaptation of this oxidation method for solid-phase synthesis demonstrates that single-bead FTIR microspectroscopy is a powerful method for facilitating the time-consuming reaction optimization stage of combinatorial chemistry.
  • Is Part Of: The Journal of organic chemistry, 13 December 1996, Vol.61(25), pp.8765-8770
  • Identifier: E-ISSN: 1520-6904 ; PMID: 11667851 Version:1
  • Subjects: Alcohols -- Analysis ; Oxidation-reduction Reactions -- Analysis ; Fourier Transform Infrared Spectroscopy -- Research ; Oxidizing Agents -- Usage
  • Language: English

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