محمد رضا محمدی زاده

A novel and efficient procedure was introduced for the synthesis of alkyl acetates bearing arylthio and quinoxaline moieties from the reaction of o-phenylenediamines, dialkyl acetylenedicarboxylates, and in-situ generated arylsulphenyl chlorides in DMF as solvent at room temperature. The procedure worked well for a variety of starting materials and the corresponding products were obtained in good yields. Moreover, some derivatives of dialkyl 2-amino-3-thiomalates were stereoselectively synthesized via the reaction of amines, dialkyl acetylenedicarboxylates and in-situ generated arylsulphenyl chlorides in moderate to good yields in DCE as solvent at room temperature.