Catalysts for isomerizing dichlorobutenes
This invention relates to a composition producible by mixing an iron carbonyl complex selected from among the group Fe(CO) 5 , Fe 2 (CO) 9 , Fe 3 (CO) 12 or of anhydrous iron salts Fe m X n , wherein m=1 or 2 and n=2 or 3 and X=halide, carbonate, nitrate, nitrite, sulfide, sulfate, phosphate, rhodan...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
25.10.2001
|
| Online Access | Get full text |
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| Summary: | This invention relates to a composition producible by mixing an iron carbonyl complex selected from among the group Fe(CO)
5
, Fe
2
(CO)
9
, Fe
3
(CO)
12
or of anhydrous iron salts Fe
m
X
n
, wherein m=1 or 2 and n=2 or 3 and X=halide, carbonate, nitrate, nitrite, sulfide, sulfate, phosphate, rhodanide, acetate, acetylacetonate or a mixture of two or three of these compounds with a cyclopentadiene derivative of the general formula I,
1
wherein
R
1
to R
5
mutually independently denote H, C
1
to C
12
alkyl, C
5
to C
8
cycloalkyl, which may in turn bear C
1
to C
12
alkyl groups, C
6
to C
14
aryl, alkylaryl, arylalkyl, wherein two adjacent residues may together form saturated or unsaturated C
3
to C
14
cycles, or denote -SiR
6
R
7
R
8
, wherein R
6
to R
7
may mutually independently mean C
1
to C
4
alkyl, C
5
to C
8
cycloalkyl or C
6
to C
14
aryl, and 1,4-dichloro-2-butene and/or 3,4-dichloro-1-butene, and to the use thereof as a catalyst, in particular in a process for isomerizing 1,4-dichloro-2-butene to yield 3,4-dichloro-1-butene or vice versa. |
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