Tetrahedron p. 12913 - 12922 (1994)
Update date:2022-08-11
Topics:
Imhaoulne
Imhaoulene
Vivier
Guisnet
Petot
Perot
Gubelmann
The reactions between various haloaromatics in binary mixtures which were approximately equimolar, were studied in gas-phase (673 K, atmospheric: pressure) in the presence of a 2 wt % Cu-HZSM-5 zeolite. The exchange of halogens (ipso substitution) between the two compounds was assumed to occur either through a radical mechanism involving an electron transfer between an atom of copper (I) and one aromatic molecule or through a nucleophilic substitution involving arylcopper complexes as intermediates.
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