30267-98-2Relevant academic research and scientific papers
Complexes of Copper(II) Chloride with Diaryl-4,4′-Bisdiazonium Dichlorides, Their Transformation into 4,4-Chlorodiaryls and Reaction with Olefins
Obushak,Lyakhovich,Fedorovich,Ganushchak
, p. 1471 - 1476 (2007/10/03)
Diaryl-4,4′-bisdiazonium dichlorides react with olefins in CuCl2 presence to form 4,4′-bisdiazoniumdiaryl tetrachlorocuprates(II) as intermediates. The method of synthesis of these stable complex diazonium salts under ordinary conditions has been worked out. They decompose in polar solvents at room temperature to form 4,4′-dichlorodiaryls in high yield. In the presence of olefins (compounds containing a X = Y bond, acrylates and metacrylates, acrylonitrile, styrene, 1,3-butadiene) they decompose forming adducts, products of chloroarilation of the enumerated substrates to double bond consuming one or two diazogroups. 4-Styryl-4′-chlorodiaryls, the products of arylation by one diazogroup, were obtained from styrene.
Process for the arylation of olefines
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, (2008/06/13)
A process for arylating an olefinic compound by addition of an aryl group to a double bond of said olefinic compound consisting in diazotizing an arylamine in an aqueous acidic solution comprising a lower alkanoic acid to form a solution of an aryldiazonium salt and reacting said aryldiazonium salt solution with an olefinic compound in an organic solvent in the presence of a catalytically effective amount of a copper halide. The amount of alkanoic acid is about 15 to 37% by volume of the total solvents used. The alkanoic acid is preferably acetic acid and the copper halide cuprous chloride.
