ChemInform Abstract: 1,1,1,4,5,5,5‐Heptafluoro‐4‐(trifluoromethyl)‐2,3‐pentanedione, a Potent Reagent for the Synthesis of Cyclic λ⁵σ⁵ Phosphoranes.

Abstract

1998 organo-phosphorus compounds, nonmetal heterocycles organo-phosphorus compounds, nonmetal heterocycles S 0087 -2041,1,1,4,5,5,5-Heptafluoro-4-(trifluoromethyl)-2,3-pentanedione, a Potent Reagent for the Synthesis of Cyclic λ 5 σ 5 Phosphoranes.-Title compound (II) is employed for the convenient and high-yielding synthesis of cyclic phosphoranes (III). No interaction of the diketone (II) with the isocyanato group in (Ib) or (Ic) is observed, as known for the corresponding reaction with hexafluoroacetone.-(GOERG, M.; DIECKBREDER, U.; SCHOTH, R.-M.; ROESCHENTHALER, G.-V.; KADYROV, A. A.; Heteroat. Chem. 9 (1998) 2, 109-113; Inst. Anorg. Phys. Chem., Univ. Bremen, D-28334 Bremen, Germany; EN)