Aryloxy-derivatives of thionyl tetrafluoride

Abstract

Thionyl tetrafluoride reacts with arylsilyl ethers to give substituted derivatives ArO·S(:O)F₃(Ar = Ph; o-, m-, p-MeC₆H₄; m-, p-ClC₆H₄; o-, m-, p-FC₆H₄), (ArO)₂S(:O)F₂(Ar = Ph, p-MeC₆H₄, p-ClC₆H₄, p-NO₂·C₆H₄), (ArO)₃S(:O)F (Ar = Ph, p-MeC₆H₄, p-ClC₆H₄, C₆F₅), (m-MeC₆H₄O)₄SO, and (o-C₆H₄O₂)₂SO. Spectroscopic data and modes of thermal and hydrolytic decomposition were studied for most derivatives. The thionyl trifluorides and difluorides appear to have structures based on a trigonal bipyramidal co-ordination about sulphur.