Dehalogenation process

Details Dehalogenation process Dehalogenation process

2006-05-04

2009-11-24

Keys, Rosalynd (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S673000, C568S674000, C549S430000, C549S455000, C585S612000

Reexamination Certificate

active

07622616

ABSTRACT:
A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds having a linear, branched or cyclic structure, said halofluorinated compounds containing in the molecule at least one group:wherein Y1and Y2, equal to or different from each other, are selected from Cl, Br, I;wherein the halofluorinated compounds are dehalogenated in the presence of a transition metal, or of transition metal couples, 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 ranges from 0.5 to 10, preferably from 0.5 to 5, still more preferably from 1 to 3.

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