| 摘要 |
A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds with aromatic substituents, having formula: <?in-line-formulae description="In-line Formulae" end="lead"?>T-Ar-(O)<SUB>y</SUB>-CFX'-CF<SUB>2</SUB>X''(I) <?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>wherein: <?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>X'=F, Cl, Br, I; <?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>X''=Cl, Br, I; <?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>y= 0, 1 ; when y= 0 X'<>F; <?in-line-formulae description="In-line Formulae" end="tail"?> <?in-line-formulae description="In-line Formulae" end="lead"?>T=H, -(O)Y-CFX'-CF<SUB>2</SUB>X'', wherein y, X' and X'' are as above; <?in-line-formulae description="In-line Formulae" end="tail"?> Ar is a monocyclic, bicyclic or tricyclic bivalent aromatic radical from 6 to 14 carbon atoms, optionally containing heteroatoms, or Ar is formed of two aromatic rings linked by a bivalent radical; said process characterized in that the halofluorinated compounds are dehalogenated in the presence of a transition metal, by operating in a biphasic system of solvents immiscible among each other, formed of a (per)fluorinated solvent and a dipolar aprotic or protic solvent (co-solvent), wherein the ratio moles co-solvent/equivalents of the halofluorinated compound with aromatic substituents ranges from 0.5 to 10.
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