NOUVELLE SYNTHESE DE PRECURSEURS PHENOLIQUES DES LIGNINES UTILISANT LES SELS D'IMINIUM DES ACIDES p-HYDROXY CINNAMIQUES

Article abstract of DOI:10.1016/S0040-4039(01)81282-X

4-Hydroxy cinnamic esters, thiolesters, aldehydes and alcohols, or related compounds, implied in the biosynthesis of lignins are easily synthesized in good yields from iminium salts of coumaric 1a, ferulic 1b and sinapic 1c acids.No prior protection of the phenol group is needed in this method.