DERIVATIZATION OF TETRAFLUOROBENZOcTHIOPHENE.PREPARATION OF TETRAFLUOROTHIABENZOPORPHYRIN

摘要

The Diels-Alder reactions of tetrafluorobenzocthiophene with electron-deficient olefins such p-benzoquinone and bis(phenylsulfonyl)ethylene gave adducts in moderate yields,while no product was obtained in the reaction with butyl vinyl ether.The Vilsmeier reaction gave tetrafluorobenzocthiophene-l-carbaldehyde in good yield.The aldehyde was converted to tetrafluorothiabenzoporphyrin.