NEW RESULTS OF REACTIONS WITH HEXAFLUOROACETONE AND RELATED COMPOUNDS

Article abstract of DOI:10.1016/S0022-1139(00)80882-9

The reaction of hexafluoroacetone (HFA) with CN- and SCN-compounds of main group and transition elements is described.The cyclic addition reactions to the CN-moiety is catalyzed by base, preferentially triethylamine.Of particular interest are the adducts of HFA with (SCN)2 and Hg(SCN)2.They are precursors for various new compounds containing six-membered rings.The elimination of oxygen by the rection of HFA with N=WCl3 may be considered as a new Wittig type reaction.The dimer of hexafluorothioacetone inserts into its S-C bond the carbon atom of an isonitrile group to yield five-membered rings.PCl5 adds to (CF3)2C=C(CN)2, prepared from HFA and CH2(CN)2, to form a six-membered phosphorus containing ring.