Hydridopalladium(II) species generated in situ by oxidative addition o
f Pd(0) to acetic acid or acidic hydroxyl substrates (phenols, oximes)
catalyse the termolecular assembly of allenes, CO and amines (primary
, secondary) or oxygen nucleophiles to give methacrylamides or methacr
ylate esters and derivatives thereof in good to excellent yield. (C) 1
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