DOSY-NMR analysis of ring-closing metathesis (RCM) products from β-lactam precursors

Sliwa, Aline;Marchand-Brynaert, Jacqueline;Luhmer, Michel
(2011) Magnetic Resonance in Chemistry — Vol. 49, n° 12, p. 812-815 (2011)

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Authors
  • Sliwa, AlineUCLouvain
    Author
  • Marchand-Brynaert, JacquelineUCLouvain
    Author
  • Luhmer, MichelUCLouvain
    Author
Abstract
The discrimination between cyclomonomers and various oligomers formed during a ring-closing metathesis (RCM) process is not an easy task. Their 1H NMR patterns are often very similar, and the use of mass spectrometry techniques is usually recommended. Here, we show that the DOSY-NMR method is a reliable tool to help in the identification of cyclomonomers versus cyclodimers by comparing the translational diffusion coefficient of the compounds issued from RCM reactions with the diffusion coefficient of their respective precursors. © 2011 John Wiley & Sons, Ltd.
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Sliwa, A., Marchand-Brynaert, J., & Luhmer, M. (2011). DOSY-NMR analysis of ring-closing metathesis (RCM) products from β-lactam precursors. Magnetic Resonance in Chemistry, 49(12), 812-815. https://doi.org/10.1002/mrc.2808 (Original work published 2011)