Abstract
Substituted vinylene carbonates were directly prepared from aromatic aldehydes following a one-pot Benzoin condensation / transcarbonation sequence under solvent-free conditions. The combination of a N-phenyl substituted triazolium salt NHC precursor and 4-dimethylaminopyridine (DMAP) was found essential to reach high yield and selectivity. The reaction scope was investigated with a range of aromatic aldehydes and the corresponding vinylene carbonates were obtained with 32-86% isolated yields (14 examples).
Supplementary materials
Title
Supporting Information-Direct Synthesis of Vinylene Carbonates from Aromatic Aldehydes
Description
Supporting information containing experimental procedures, characterization data and copies of 1H and 13C NMR spectra.
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