A one-pot solvent free Wittig procedure was suggested for fast and high efficient preparation of alkyl oxindolideneacetates a-h by reaction of isatin derivatives, triphenylphosphine, alkyl bromoacetate and morpholine.
Keywords: Isatin, Triphenylphosphine, Alkyl bromoacetate, Wittig reaction, Solvent free conditions, Alkyl oxindolideneacetates