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Cyclodimerization of α,β–α′,β′‐unsaturated ketones promoted by samarium diiodide. Complete assignment of the 1 H and 13 C NMR spectra of hydroxycyclopentylpropenone derivatives
Author(s) -
Lagadec Ronan Le,
Chávez María Isabel,
Rubio Laura,
Cabrera Armando
Publication year - 2001
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.823
Subject(s) - chemistry , samarium , chemical shift , samarium diiodide , carbon 13 nmr , nmr spectra database , iodide , spectral line , two dimensional nuclear magnetic resonance spectroscopy , ketone , medicinal chemistry , proton nmr , stereochemistry , organic chemistry , physics , astronomy
The 1 H and 13 C NMR chemical shift assignments of hydroxycyclopentylpropenone derivatives, prepared by a highly selective reaction between samarium(II) iodide and unsaturated ketones, are described. Two‐dimensional shift‐correlated experiments (COSY, HMBC, HMQC, NOESY) were used to assign the chemical shifts completely and unambiguously. Copyright © 2001 John Wiley & Sons, Ltd.