A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds with aromatic substituents, having formula:
T-Ar-(O)
y
-CFX′-CF
2
X″(I)
wherein:
X′=F, Cl, Br, I;
X″=Cl, Br, I;
y=
0, 1
; when y=
0
X′≠F;
T=H, -(O)Y-CFX′-CF
2
X″, wherein y, X′ and X″ are as above;
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.
一种通过芳基取代的卤
氟化合物的去卤化反应来获得
乙烯基化合物的方法,其具有以下
化学式:T-Ar-(O)y-CFX′-
CF2X″(I)其中:X′=F,Cl,Br,I;X″=Cl,Br,I;y=0,1;当y=0时,X′≠F;T=H,-(O)Y-CFX′-
CF2X″,其中y,X′和X″如上所述;Ar是一个单环、双环或
三环的双价芳香基团,由6到14个碳原子组成,可选地含有杂原子,或者Ar由两个芳香环通过一个双价基团连接而成;所述方法的特征在于,在过渡
金属的存在下,通过在两种不相溶的溶剂的双相系统中操作,其中一种是(per)
氟化溶剂,另一种是双极无
水溶剂或质子溶剂(共溶剂),其中共溶剂的摩尔比/具有芳基取代的卤
氟化合物的当量比范围从0.5到10。